guojianz/MolReasoner huggingface dataset:
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][Branch1][C][C][Branch2][Branch1][=Branch2][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@H1][O][C@@H1][Branch1][P][N][C][=N][C][=C][Branch1][C][N][N][=C][N][=C][Ring1][#Branch1][Ring1][#Branch2][C@H1][Branch1][C][O][C@@H1][Ring1][S][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][C@@H1][Branch1][C][O][C][=Branch1][C][=O][N][C][C][C][=Branch1][C][=O][N][C][C][S][C][=Branch1][C][=O][C][C@@H1][Branch1][C][O][C][C][C][C][C][C][C][=Branch1][C][=O][O-1]

The molecule is an acyl-CoA oxoanion that is the pentaanion of (S)-3-hydroxydecanedioyl-CoA, arising from deprotonation of the phosphate, diphosphate and carboxylic acid functions; major species at pH 7.3. It is a conjugate base of a (S)-3-hydroxydecanedioyl-CoA.

SMILES: CC(C)(COP(=O)([O-])OP(=O)([O-])OCC1OC(n2cnc3c(N)ncnc32)C(O)C1OP(=O)([O-])[O-])C(O)C(=O)NCCC(=O)NCCSC(=O)CC(O)CCCCCCC(=O)[O-]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][Branch1][C][C][C@H1][Branch1][C][C][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@@H1][Branch1][C][C][C@H1][C][C][C@H1][C@@H1][C][C][=Branch1][C][=O][C@H1][C][C@H1][Branch1][C][O][C][C][C@][Ring1][#Branch1][Branch1][C][C][C@H1][Ring1][=N][C][C][C@][Ring2][Ring1][Ring2][Ring1][P][C]

The molecule is a brassinosteroid that is ergostan-6-one bearing three additional hydroxy substituents at positions 3alpha, 22R and 23R. It has a role as a plant metabolite. It is a 3alpha-sterol, a 6-oxo steroid, a 22-hydroxy steroid, a 23-hydroxy steroid and a brassinosteroid. It derives from a hydride of a 5alpha-campestane.

SMILES: CC(C)C(C)C(O)C(O)C(C)C1CCC2C3CC(=O)C4CC(O)CCC4(C)C3CCC12C
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][O][C][=C][C][Branch1][#Branch2][/C][=C][/C][O][C][Branch1][C][C][=O][=C][C][=C][Ring1][=N][O]

The molecule is an acetate ester obtained via formal condensation of the allylic hydroxy function of coniferol with acetic acid. It is an acetate ester, a coniferyl ester and a member of phenols. It derives from a coniferol.

SMILES: COc1cc(C=CCOC(C)=O)ccc1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][O][C][=C][O][C][=C][C][Ring1][Branch1][=C][Branch1][C][O-1][C][C][=C][C][=Branch1][C][=O][O][C][Ring1][#C][=Ring1][#Branch1]

The molecule is a phenolate anion that is the conjugate base of 5-hydroxyxanthotoxin, obtained by deprotonation of the hydroxy group. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of a 5-hydroxyxanthotoxin.

SMILES: COc1c2occc2c([O-])c2ccc(=O)oc12
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][C][C][C][/C][=C][\C][/C][=C][\C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@H1][Branch2][Ring1][Ring1][C][O][/C][=C][\C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C][N]

The molecule is a 1-(alk-1-enyl)-2-acyl-sn-glycero-3-phosphoethanolamine in which the alkenyl and acyl groups are specified as (1Z)-hexadecenyl and linoleoyl respectively. It has a role as a mouse metabolite. It derives from a linoleic acid. It is a tautomer of a 1-(1Z-hexadecenyl)-2-linoleoyl-sn-glycero-3-phosphoethanolamine zwitterion.

SMILES: CCCCCC=CCC=CCCCCCCCC(=O)OC(COC=CCCCCCCCCCCCCCC)COP(=O)(O)OCCN
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][=C][/C][=Branch2][Branch1][=N][=C][\C][=C][/C][C][C][C@][Branch1][C][C][C@@H1][Branch2][Ring2][=Branch1][C@H1][Branch1][C][C][C][C][C][C][Branch1][C][C][Branch1][C][C][O][C@@H1][O][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][O][O][C][C][C@@H1][Ring2][Ring1][#C][Ring2][Ring1][O][C][C@@H1][Branch1][C][O][C][C@@H1][Ring2][Ring2][Branch2][O]

The molecule is a steroid glucuronide anion that is the conjugate base of calcitriol 25-O-(beta-D-glucuronide) arising from deprotonation of the carboxylic acid function; major species at pH 7.3. It derives from a calcitriol. It is a conjugate base of a calcitriol 25-O-(beta-D-glucuronide).

SMILES: C=C1C(=CC=C2CCCC3(C)C2CCC3C(C)CCCC(C)(C)OC2OC(C(=O)[O-])C(O)C(O)C2O)CC(O)CC1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[25Mg]

The molecule is the stable isotope of magnesium with relative atomic mass 24.985837, 10.0 atom percent natural abundance and nuclear spin 5/2.

SMILES: [Mg]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@@H1][Branch2][Ring1][S][O][C][C@@][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][C@][Branch1][#Branch2][C][C][C][=Branch1][C][=O][N][Ring1][=Branch1][C][N][Ring1][P][C][=C][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][=C][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][=C][Ring1][=C].[Cl].[O]

The molecule is a hydrate that is the monohydrate form of rolapitant hydrochloride. Used for the prevention of delayed nausea and vomiting associated with initial and repeat courses of emetogenic cancer chemotherapy. It has a role as an antiemetic and a neurokinin-1 receptor antagonist. It contains a rolapitant hydrochloride (anhydrous).

SMILES: CC(OCC1(c2ccccc2)CCC2(CCC(=O)N2)CN1)c1cc(C(F)(F)F)cc(C(F)(F)F)c1.Cl.O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[N][/C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][=C][Branch1][Branch1][/C][=C][\C][=O][C][=Branch1][C][=O][O-1]

The molecule is the cis,cis-isomer of 2-amino-3-(3-oxoprop-1-enyl)but-2-enedioate. It has a role as a human metabolite. It is a conjugate base of a cis,cis-2-amino-3-(3-oxoprop-1-enyl)but-2-enedioic acid and a cis,cis-2-ammonio-3-(3-oxoprop-1-enyl)but-2-enedioate(1-).

SMILES: NC(C(=O)[O-])=C(C=CC=O)C(=O)[O-]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][=C][Branch1][Branch1][C][C][C][O][NH1][C][=Branch1][C][=O][NH1][C][Ring1][O][=O]

The molecule is a pyrimidone that is thymine in which the hydrogen at position 6 is substituted by a 3-hydroxypropyl group. It is a pyrimidone and a primary alcohol. It derives from a thymine.

SMILES: Cc1c(CCCO)[nH]c(=O)[nH]c1=O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@@H1][Branch1][C][O][C@H1][Branch2][Ring2][#Branch1][N][C][=Branch1][C][=O][C][=C][C][=C][Branch2][Ring1][=Branch1][C][#C][C][=C][C][=C][Branch1][#Branch2][C][N][C][C][O][C][C][Ring1][=Branch1][C][=C][Ring1][=N][C][=C][Ring2][Ring1][Branch1][C][=Branch1][C][=O][N][O]

The molecule is an L-threonine derivative obtained by formal condensation of the carboxy group of 4-({4-[(morpholin-4-yl)methyl]phenyl}ethynyl)benzoic acid with the amino group of N-hydroxy-L-threoninamide. It has a role as an antimicrobial agent, a lipopolysaccharide biosynthesis inhibitor and an EC 3.5.1.108 (UDP-3-O-acyl-N-acetylglucosamine deacetylase) inhibitor. It is an acetylenic compound, a member of morpholines, a member of benzamides, a L-threonine derivative and a hydroxamic acid.

SMILES: CC(O)C(NC(=O)c1ccc(C#Cc2ccc(CN3CCOCC3)cc2)cc1)C(=O)NO
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][C][/C][=C][\C][C][C][C][C][C][C][C][/C][=C][/C@@H1][Branch1][C][O][C@H1][Branch2][Ring1][=Branch1][C][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][#Branch2][O][N][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C]

The molecule is a beta-D-glucosylceramide obtained by formal condensation of the carboxy group of icosanoic acid with the amino group of beta-D-glucosyl-(1<->1')-(4E,14Z)-sphingadienine. It has a role as a marine metabolite. It derives from an icosanoic acid and a sphinga-4E,14Z-dienine.

SMILES: CCCC=CCCCCCCCCC=CC(O)C(COC1OC(CO)C(O)C(O)C1O)NC(=O)CCCCCCCCCCCCCCCCCCC
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@H1][Branch1][=C][C][C][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O][C@H1][C][C][C@H1][C@@H1][C][C][C@@H1][C][C@H1][Branch1][C][O][C][C][C@][Ring1][#Branch1][Branch1][C][C][C@H1][Ring1][N][C][C][C@][Ring2][Ring1][Ring1][Ring1][S][C]

The molecule is the glycine conjugate of lithocholic acid. It is a bile acid glycine conjugate and a N-acylglycine. It derives from a lithocholic acid. It is a conjugate acid of a glycolithocholate.

SMILES: CC(CCC(=O)NCC(=O)O)C1CCC2C3CCC4CC(O)CCC4(C)C3CCC12C
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][=Branch1][C][=O][N][C@@H1][Branch2][Ring2][C][C][C][=C][C][=C][Branch1][C][O][C][Branch2][Ring1][C][N][=N][C][=C][C][=C][Branch1][=Branch1][C][=Branch1][C][=O][O][C][=C][Ring1][=Branch2][=C][Ring2][Ring1][C][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O]

The molecule is a tripeptide consisting of AcTyrGlyGly with a (p-carboxyphenyl)diazenyl substituent at the 3-position on the tyrosine phenyl ring. It is a tripeptide and a monoazo compound.

SMILES: CC(=O)NC(Cc1ccc(O)c(N=Nc2ccc(C(=O)O)cc2)c1)C(=O)NCC(=O)NCC(=O)O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@@H1][O][C@@H1][Branch2][#Branch1][#C][O][C][C][C][C][C][/C][=C][/C][=Branch1][C][=O][S][C][C][N][C][=Branch1][C][=O][C][C][N][C][=Branch1][C][=O][C@H1][Branch1][C][O][C][Branch1][C][C][Branch1][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@H1][O][C@@H1][Branch1][P][N][C][=N][C][=C][Branch1][C][N][N][=C][N][=C][Ring1][#Branch1][Ring1][#Branch2][C@H1][Branch1][C][O][C@@H1][Ring1][S][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][C@H1][Branch1][C][O][C][C@H1][Ring2][Branch1][P][O]

The molecule is an acyl-CoA(4-) obtained by deprotonation of the phosphate and diphosphate groups of oscr#13-CoA; major species at pH 7.3. It is a conjugate base of an oscr#13-CoA.

SMILES: CC1OC(OCCCCCC=CC(=O)SCCNC(=O)CCNC(=O)C(O)C(C)(C)COP(=O)([O-])OP(=O)([O-])OCC2OC(n3cnc4c(N)ncnc43)C(O)C2OP(=O)([O-])[O-])C(O)CC1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@@H1][C@@H1][O][C@H1][C][C][C@@][Branch2][Ring1][Ring1][C][=C][C][C@H1][Branch1][C][C][C@@][Ring1][#Branch1][Branch1][C][C][C@H1][Ring1][#C][Ring1][N][O][Ring1][#C]

The molecule is a sesquiterpenoid of the class of nardosinane-type terpenoids isolated from the Formosan soft coral Lemnalia flava, and has been shown to exhibit neuroprotective activity. It has a role as a neuroprotective agent, an anti-inflammatory agent and a coral metabolite. It is a sesquiterpenoid, an organic heterotetracyclic compound and a cyclic ether.

SMILES: CC1C2OC3CCC4(C=CCC(C)C4(C)C31)O2
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@@H1][O][C@@H1][Branch2][Branch1][Ring1][O][C@H1][C][C@][Branch1][C][O][Branch1][#Branch1][C][=Branch1][C][=O][C][O][C][C][=C][C][=C][Branch1][#Branch2][C][Branch1][C][O][=C][Ring1][#Branch1][Ring1][S][C][=Branch1][C][=O][C][=C][Branch1][C][O][C][=C][C][=C][Ring1][#Branch1][C][Ring1][#C][=O][C][C@H1][Branch1][C][N][C@@H1][Ring2][Ring2][Ring1][O]

The molecule is an aminoglycoside, an anthracycline, a deoxy hexoside, a member of p-quinones, a primary alpha-hydroxy ketone and a tertiary alpha-hydroxy ketone. It derives from a doxorubicin.

SMILES: CC1OC(OC2CC(O)(C(=O)CO)Cc3cc4c(c(O)c32)C(=O)c2c(O)cccc2C4=O)CC(N)C1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][Branch1][C][C][=C][C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][=C][Branch1][C][\C][C][C][/C][=C][Branch1][C][\C][C][C][C@@H1][O][C][Ring1][Ring1][Branch1][C][C][C]

The molecule is a 2,3-epoxysqualene in which the chiral centre has S configuration. It is converted into lanosterol by lanosterol synthase (EC 5.4.99.7) in a key rate-limiting step in the biosynthesis of chloesterol, steroid hormones, and vitamin D. It has a role as a human metabolite, a Saccharomyces cerevisiae metabolite and a mouse metabolite. It derives from a hydride of a squalene.

SMILES: CC(C)=CCCC(C)=CCCC(C)=CCCC=C(C)CCC=C(C)CCC1OC1(C)C