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

The molecule is a diterpene lactone isolated from the whole plants of Ajuga ciliata. It has a role as a plant metabolite. It is a butenolide, an acetate ester, a diterpene lactone, a spiro-epoxide and an organic heterotricyclic compound.

SMILES: CC(=O)OCC12C(OC(C)=O)CC(C)C3(C)CC(C4=CC(=O)OC4)OC(CCC14CO4)C32
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][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N][Branch1][N][C][C@H1][Branch1][C][C][C][N][Branch1][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][S][Ring2][Ring1][C]

The molecule is a member of the class of phenothiazines that is 10H-phenothiazine substituted by a (2R)-3-(dimethylamino)-2-methylpropyl group and a methoxy group at positions 10 and 2 respectively. It has a role as a phenothiazine antipsychotic drug, a dopaminergic antagonist, a serotonergic antagonist, a cholinergic antagonist, a non-narcotic analgesic, an EC 3.4.21.26 (prolyl oligopeptidase) inhibitor and an anticoronaviral agent. It is a member of phenothiazines and a tertiary amine. It derives from a hydride of a 10H-phenothiazine.

SMILES: COc1ccc2c(c1)N(CC(C)CN(C)C)c1ccccc1S2
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][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@@H1][Branch1][C][N][C][C][C@H1][Ring1][Branch2][O]

The molecule is a piperidone that consists of 3-hydroxybutanoic acid substituted at position 2 by a 3-amino-6-hydroxy-2-oxopiperidin1-yl group. It is a member of piperidones, an aminopiperidine, a hydroxypiperidine and a monocarboxylic acid. It derives from a butyric acid.

SMILES: CC(O)C(C(=O)O)N1C(=O)C(N)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>

[N][C][=N][C][=C][Branch2][#Branch1][=Branch2][N][=C][N][Ring1][Branch1][C@@H1][O][C@H1][Branch2][=Branch1][Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][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][Branch2][Ring1][Ring2][N][C][=N][C][C][=Branch1][C][=O][NH1][C][Branch1][C][N][=N][C][=Ring1][Branch2][Ring1][O][C@H1][Branch1][C][O][C@@H1][Ring1][P][O][C@@H1][Branch1][C][O][C@H1][Ring2][Ring2][O][O][C][=Branch1][C][=O][NH1][Ring2][Branch1][=Branch1]

The molecule is tetraanion of P(1),P(4)-bis(5'-guanosyl) tetraphosphate arsing from deprotonation of thefour free OH groups of the tetraphosphate. It has a role as a Saccharomyces cerevisiae metabolite. It is a conjugate base of a P(1),P(4)-bis(5'-guanosyl) tetraphosphate.

SMILES: Nc1nc2c(ncn2C2OC(COP(=O)([O-])OP(=O)([O-])OP(=O)([O-])OP(=O)([O-])OCC3OC(n4cnc5c(=O)[nH]c(N)nc54)C(O)C3O)C(O)C2O)c(=O)[nH]1
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][N][/C][=Branch2][Ring1][Ring1][=C][\C][=C][\C][S][C][=C][C][=C][C][=C][Ring1][=Branch1][N+1][=Ring1][=Branch2][C][C][S][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring2][Ring1][#Branch1].[I-1]

The molecule is a cyanine dye and a member of benzothiazoles. It has a role as a fluorochrome. It contains a C3-thiacarbocyanine cation.

SMILES: CCN1C(=CC=Cc2sc3ccccc3[n+]2CC)Sc2ccccc21.[I-]
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>

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

The molecule is a stilbenoid isolated from the stems of Kobresia nepalensis and has been shown to exhibit inhibitory activity against topoisomerase II. It has a role as a metabolite and an EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor. It is a member of 1-benzofurans, a polyphenol and a stilbenoid.

SMILES: Oc1ccc(C2Oc3cc(O)c(C4c5cc(C6C(c7ccc(O)cc7)OC(c7ccc(O)cc7)C6c6cc(O)cc(O)c6)c(O)cc5OC4c4ccc(O)cc4)cc3C2c2cc(O)cc(O)c2)cc1
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][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1]

The molecule is a very long-chain fatty acid anion that is the conjugate base of heptacosanoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a heptacosanoic acid.

SMILES: CCCCCCCCCCCCCCCCCCCCCCCCCCC(=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][O][C][=C][C][=C][Branch1][S][C][Branch1][Ring1][O][C][=C][Ring1][Branch2][C][C][=C][Branch1][C][C][C][C][C@H1][Branch2][Ring1][=Branch1][C][=C][C][=C][Branch1][C][O][C][Branch1][Branch2][C][C][=C][Branch1][C][C][C][=C][Ring1][N][O][C][O][Ring2][Ring1][N]

The molecule is a member of the class of hydroxyisoflavans that is the 7-O-methyl derivative of licoricidin. Isolated from Glycyrrhiza uralensis, it exhibits antibacterial activity. It has a role as an antibacterial agent and a plant metabolite. It is an aromatic ether, a member of hydroxyisoflavans and a methoxyisoflavan. It derives from a licoricidin.

SMILES: COc1cc2c(c(OC)c1CC=C(C)C)CC(c1ccc(O)c(CC=C(C)C)c1O)CO2
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][=Branch1][Ring2][=C][Ring1][=Branch1][S][C][Branch1][S][C][=C][C][=C][Branch1][=Branch1][N][Branch1][C][C][C][C][=C][Ring1][=Branch2][=N+1][Ring1][#C][C]

The molecule is a benzothiazolium ion obtained by methylation of the thiazole nitrogen of 2-[4-(dimethylamino)phenyl]-6-methyl-1,3-benzothiazole; the cationic component of thioflavin T.

SMILES: Cc1ccc2c(c1)sc(-c1ccc(N(C)C)cc1)[n+]2C
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][=Branch1][C][=O][C][Branch1][=Branch2][C][C][=Branch1][C][=O][O][Ring1][=Branch2][C][Ring1][#Branch2][Branch1][C][C][C]

The molecule is a bridged compound that is 1,2-campholide substituted at position 5 by an oxo group. It is a ketolactone and a bridged compound. It derives from a 1,2-campholide.

SMILES: CC12CC(=O)C(CC(=O)O1)C2(C)C
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][=C][C][=C][Branch2][Ring1][P][N][=N][C][=C][Branch1][C][N][C][=C][C][=C][C][Branch1][=Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O][=C][C][Branch1][C][O][=C][Ring1][S][Ring1][O][C][Branch1][=Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O][=C][Ring2][Ring1][N]

The molecule is a naphthalenesulfonic acid that is 6-aminonaphthalene-2-sulfonic acid carrying additional hydroxy and (4-acetamido-2-sulfophenyl)diazenyl substituents at positions 4 and 5 respectively. The disodium salt is the biological stain 'lissamine fast red'. It has a role as a fluorochrome and a histological dye. It is a member of naphthols, a member of azobenzenes, a member of acetamides and an aminonaphthalenesulfonic acid. It is a conjugate acid of a lissamine fast red(2-).

SMILES: CC(=O)Nc1ccc(N=Nc2c(N)ccc3cc(S(=O)(=O)O)cc(O)c23)c(S(=O)(=O)O)c1
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][C][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]

The molecule is an acyl-CoA(4-) arising from deprotonation of the phosphate and diphosphate functions of isopalmitoyl-CoA. Major species at pH 7.3. It is a saturated fatty acyl-CoA(4-) and a long-chain fatty acyl-CoA(4-). It is a conjugate base of an isopalmitoyl-CoA.

SMILES: CC(C)CCCCCCCCCCCCC(=O)SCCNC(=O)CCNC(=O)C(O)C(C)(C)COP(=O)([O-])OP(=O)([O-])OCC1OC(n2cnc3c(N)ncnc32)C(O)C1OP(=O)([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>

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

The molecule is the L-enantiomer of cysteinate(2-). It has a role as a fundamental metabolite. It is a conjugate base of a L-cysteinate(1-). It is an enantiomer of a D-cysteinate(2-).

SMILES: NC(C[S-])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][=Branch1][C][=O][N][C@@H1][C@@H1][Branch1][C][O][C@H1][Branch2][Ring1][#Branch2][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][#Branch2][N][C][Branch1][C][C][=O][C@@H1][Branch2][Ring1][Branch1][C][O][C@@H1][O][C@@H1][Branch1][C][C][C@@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@@H1][Ring1][=Branch2][O][O][C@H1][Ring2][Ring2][C][O]

The molecule is an amino trisaccharide that is 2-acetamido-2-deoxy-beta-D-glucopyranose in which the hydroxy groups at positions 4 and 6 have been converted into the corresponding 2-acetamido-2-deoxy-beta-D-glucopyranosyl and alpha-L-fucopyranosyl derivatives, respectively. It is a glucosamine oligosaccharide, a member of acetamides and an amino trisaccharide. It derives from a N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-glucosamine.

SMILES: CC(=O)NC1C(O)OC(COC2OC(C)C(O)C(O)C2O)C(OC2OC(CO)C(O)C(O)C2NC(C)=O)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>

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

The molecule is a ring assembly that consists of two units of 4-hydroxy-3,4-dihydronaphthalen-1(2H)-one joined at their C-2 position. It has been isolated from the roots of Rubia yunnanensis. It has a role as a plant metabolite. It is a member of tetralins, a ring assembly, a secondary alcohol and a cyclic ketone.

SMILES: O=C1c2ccccc2C(O)CC1C1CC(O)c2ccccc2C1=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][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C][C@H1][C][Branch1][C][C][Branch1][C][C][C][C][C][C@][Ring1][=N][Ring1][Branch2][C]

The molecule is a diterpene that is abietane having three double bonds located at positions 8, 11 and 13. It has a role as a plant metabolite. It derives from a hydride of an abietane.

SMILES: CC(C)c1ccc2c(c1)CCC1C(C)(C)CCCC21C
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][=N][C][Branch1][C][Cl][=N][C][=C][Ring1][#Branch1][N][=C][N][Ring1][Branch1][C@H1][C][C@H1][Branch1][C][O][C@@H1][Branch1][Ring1][C][O][O][Ring1][Branch2]

The molecule is 2'-Deoxyadenosine in which the hydrogen at position 2 on the purine ring has been substituted by chlorine. It inhibits the synthesis and repair of DNA, particularly in lymphocytes and monocytes, and is used as an antimetabolite antineoplastic drug for the treatment of lymphoid malignancies including hairy-cell leukaemia and chronic lymphocytic leukaemia. It has a role as an antineoplastic agent and an immunosuppressive agent. It is a purine 2'-deoxyribonucleoside and an organochlorine compound.

SMILES: Nc1nc(Cl)nc2c1ncn2C1CC(O)C(CO)O1