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>

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

The molecule is an O-acyl carbohydrate obtained by the formal condensation of the 20-carboxy group of 20-hydroxy-20-oxoleukotriene B4 with the anomeric hydroxy group of beta-D-glucuronic acid. It is a leukotriene, a glucosiduronic acid, a dicarboxylic acid and an O-acyl carbohydrate. It derives from a 20-hydroxy-20-oxoleukotriene B4. It is a conjugate acid of a 20-hydroxy-20-oxoleukotriene B4-20-(beta-D-glucuronide)(2-).

SMILES: O=C(O)CCCC(O)C=CC=CC=CC(O)CC=CCCCCC(=O)OC1OC(C(=O)O)C(O)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>

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

The molecule is a cyclohexadienecarboxylic acid having the C=C double bonds at the 1- and 3-positions, the carboxy group at the 1-position, an oxo group at the 5-position and an imino group at the 6-position. It is a cyclohexadienecarboxylic acid and an alpha,beta-unsaturated monocarboxylic acid. It is a conjugate acid of a 6-imino-5-oxocyclohexa-1,3-diene-1-carboxylate.

SMILES: N=C1C(=O)C=CC=C1C(=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][Branch2][Ring1][O][C][C][C][=C][C][Branch1][C][O][=C][Branch1][Ring1][O][C][C][=C][Ring1][=Branch2][C][C][N+1][Ring1][=N][Branch1][C][C][C][C][=C][Ring2][Ring1][=Branch1][O]

The molecule is a quaternary ammonium ion obtained by methylation of the tertiary amino function of reticuline. It derives from a reticuline.

SMILES: COc1ccc(CC2c3cc(O)c(OC)cc3CC[N+]2(C)C)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][C][C][/C][=Branch1][#Branch2][=C][\C][=C][C][=C][N][=C][Ring1][=Branch1][C][=Branch1][C][=O][/C][=Branch1][#Branch2][=C][/C][=C][C][=C][N][=C][Ring1][=Branch1][C][Ring2][Ring1][Branch1]

The molecule is a cyclic ketone that is 4-ethylcyclohexanone which is substituted by pyridin-3-ylmethylene groups at positions 2 and 6. It is a potent small molecule stimulator of steroid receptor coactivators (SRCs). MCB-613 increases SRCs' interactions with other coactivators and markedly induces ER stress coupled to the generation of reactive oxygen species. Since cancer cells overexpress SRCs and rely on them for growth, MCB-613 can be used to selectively induce excessive stress in cancer cells. It has a role as a steroid receptor coactivator stimulator and an antineoplastic agent. It is a cyclic ketone, an enone and a member of pyridines.

SMILES: CCC1CC(=Cc2cccnc2)C(=O)C(=Cc2cccnc2)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>

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

The molecule is the D-enantiomer of dopachrome. It is a conjugate acid of a D-dopachrome(1-). It is an enantiomer of a L-dopachrome.

SMILES: O=C1C=C2CC(C(=O)O)NC2=CC1=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>

[Cl].[O][=C][C][N][C][C][=C][Branch1][O][C][=C][C][Branch1][C][Cl][=C][Ring1][#Branch1][Cl][N][=C][Ring1][N][N][Ring1][#C]

The molecule is the hydrochloride salt of anagrelide. It has a role as an antifibrinolytic drug and a platelet aggregation inhibitor. It contains an anagrelide.

SMILES: Cl.O=C1CN2Cc3c(ccc(Cl)c3Cl)N=C2N1
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@H1][O][C][=Branch1][C][=O][C][C@@H1][Branch1][C][O][C@H1][Branch1][C][C][C@@H1][Branch2][Ring2][=C][O][C@@H1][O][C@H1][Branch1][C][C][C@@H1][Branch2][Ring1][=Branch1][O][C@H1][C][C@@][Branch1][C][C][Branch1][C][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][C][O][Ring1][#Branch2][C@H1][Branch1][=Branch1][NH1+1][Branch1][C][C][C][C@H1][Ring2][Ring1][Branch1][O][C@@H1][Branch1][Ring2][C][C][=O][C][C@@H1][Branch1][C][C][C][=Branch1][C][=O][/C][=C][/C][Branch1][C][C][=C][/C@@H1][Ring2][Ring2][S][C][O][C@@H1][O][C@H1][Branch1][C][C][C@@H1][Branch1][C][O][C@@H1][Branch1][Ring1][O][C][C@H1][Ring1][#Branch2][O][C]

The molecule is an organic cation that is the conjugate acid of tylosin, obtained by protonation of the tertiary amino group; major species at pH 7.3. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a tylosin.

SMILES: CCC1OC(=O)CC(O)C(C)C(OC2OC(C)C(OC3CC(C)(O)C(O)C(C)O3)C([NH+](C)C)C2O)C(CC=O)CC(C)C(=O)C=CC(C)=CC1COC1OC(C)C(O)C(OC)C1OC
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][=Branch1][C][=C][Ring1][=Branch1][O][C@][C][C][C][C@][Branch1][C][C][C][O][C@@H1][Ring1][=Branch2][O][C@H1][Ring1][S][C][C@@H1][Ring1][=Branch2][Ring1][=N]

The molecule is an abietane diterpenoid isolated from the stem bark of Fraxinus sieboldiana. It has a role as a plant metabolite. It is an abietane diterpenoid, a bridged compound and a cyclic ether.

SMILES: CC(C)c1cc2c(cc1O)C13CCCC4(C)COC1OC2CC43
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][Ring1][=Branch2][O][C@H1][Branch1][O][C][O][P][=Branch1][C][=O][Branch1][C][O][O][C@@H1][Branch1][C][O][C@@H1][Branch1][C][O][C][O][C@H1][Branch1][C][O][C@H1][Branch2][Ring2][#Branch2][O][C@H1][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch1][C][O][C@H1][Branch2][Ring1][Branch1][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][C@H1][Ring2][Ring1][Branch1][O][C@H1][Ring2][Ring2][N][O]

The molecule is a tetrasaccharide derivative comprising alpha-D-Galp-(1->3)-alpha-D-Glcp-(1->3)-alpha-L-Rhap-(1->4)-D-ribitol phosphorylated at position 5 of ribitol. It has a role as a hapten. It is an alditol 5-phosphate and a tetrasaccharide derivative. It derives from a ribitol.

SMILES: CC1OC(OC(COP(=O)(O)O)C(O)C(O)CO)C(O)C(OC2OC(CO)C(O)C(OC3OC(CO)C(O)C(O)C3O)C2O)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@H1][Branch1][C][O][C@@H1][Branch1][C][O][C][C][=Branch1][C][=O][C][=Branch1][C][=O][O]

The molecule is a hexuronic acid that results from hydrolytic ring cleavage of the hemiacetal group of 4-deoxy-alpha-L-threo-hex-4-enopyranuronic acid with subsequent tautomerisation of the resulting enol to the corresponding ketone. It is a hexuronic acid and an aldehyde. It is a conjugate acid of a 5-dehydro-4-deoxy-D-glucuronate.

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

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

The molecule is a nucleotide-sugar oxoanion that is a trianion arising from deprotonation of the carboxy and diphosphate OH groups of UDP-alpha-D-glucuronic acid; major species at pH 7.3. It has a role as a human metabolite. It is a nucleotide-sugar oxoanion and a carbohydrate acid derivative anion. It is a conjugate base of an UDP-alpha-D-glucuronic acid.

SMILES: O=C([O-])C1OC(OP(=O)([O-])OP(=O)([O-])OCC2OC(n3ccc(=O)[nH]c3=O)C(O)C2O)C(O)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>

[C][C][Branch1][C][C][=C][C][C][C][Branch1][C][C][O][C][Ring1][Ring2][C][=O]

The molecule is an epoxide resulting from the formal epoxidation of the double bond between positions 2 and 3 of geranial. It is an aldehyde and an epoxide. It derives from a geranial.

SMILES: CC(C)=CCCC1(C)OC1C=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][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][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][=Branch1][C][=Branch1][C][=O][O][=C][C][=C][Ring1][=Branch2][O]

The molecule is a monohydroxybenzoic acid that is 4-hydroxybenzoic acid substituted at position 3 by a nonaprenyl group. It is a monohydroxybenzoic acid and an olefinic compound. It is a conjugate acid of a 4-hydroxy-3-all-trans-nonaprenylbenzoate.

SMILES: CC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCc1cc(C(=O)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][C][C][=Branch1][C][=O][C][Branch2][Ring1][Ring1][C][=C][C][Branch1][Ring1][O][C][=C][Branch1][Ring1][O][C][C][=C][Ring1][#Branch2][O][C][=C][O][C][=Ring2][Ring1][Ring1][C][=C][Ring2][Ring1][#Branch1][O]

The molecule is a member of the class of 7-hydroxyisoflavones that is isoflavone having four methoxy substituents at the 2'-, 4'-, 5'- and 6-positions and a hydroxy group at position 7. It is a member of 7-hydroxyisoflavones and a member of 4'-methoxyisoflavones. It is a conjugate acid of a dalnigrein(1-).

SMILES: COc1cc2c(=O)c(-c3cc(OC)c(OC)cc3OC)coc2cc1O
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][Branch1][Branch1][C][C][C][N][C][=Branch1][C][=O][O]

The molecule is an N(2)-acyl-L-ornithine where the acyl group is specified to be acetyl. It has a role as a human metabolite, an Escherichia coli metabolite, a Saccharomyces cerevisiae metabolite and a mouse metabolite. It is an acetyl-L-ornithine and a N2-acyl-L-ornithine. It is a tautomer of a N(2)-acetyl-L-ornithine zwitterion.

SMILES: CC(=O)NC(CCCN)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@H1][C][C@@H1][Branch1][#Branch2][C][N][Ring1][=Branch1][C][C][C][Ring1][#Branch2][C@@H1][C][C][C][C][N][Ring1][=Branch1][C][Ring1][#C]

The molecule is a quinolizidine alkaloid obtained by formal dehydrogenation at the 5,6-position of sparteine. It is a metabolite of sparteine found in human urine and plasma. It has a role as a human xenobiotic metabolite. It is a quinolizidine alkaloid, a tertiary amino compound and an organic heterotetracyclic compound. It derives from a sparteine.

SMILES: C1=C2C3CC(CN2CCC1)C1CCCCN1C3
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][Branch1][C][O][C][=C][C][=Branch1][C][=O][C][=C][C][=C][Branch1][C][O][C][Branch1][C][O][=C][Ring1][Branch2][NH1][Ring1][=N]

The molecule is a hydroxyquinoline that is kynurenic acid in which the hydrogens at positions 7 and 8 are replaced by hydroxy groups. It is a quinolinemonocarboxylic acid and a hydroxyquinoline. It derives from a kynurenic acid. It is a conjugate acid of a 7,8-dihydroxykynurenate.

SMILES: O=C(O)c1cc(=O)c2ccc(O)c(O)c2[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][C@][Branch1][C][O][C][C@H1][C][N][Branch2][#Branch1][=Branch2][C][C][C][=C][Branch1][N][NH1][C][=C][C][=C][C][=C][Ring1][=Branch2][Ring1][=Branch1][C@@][Branch1][#Branch1][C][=Branch1][C][=O][O][C][Branch2][Branch1][Branch2][C][=C][C][=C][Branch1][#Branch1][C][=C][Ring1][=Branch1][O][C][N][Branch1][C][C][C@H1][C@@][Branch1][C][O][Branch1][=Branch1][C][Branch1][C][N][=O][C@H1][Branch1][C][O][C@][Branch1][Ring1][C][C][C][=C][C][N][C][C][C@][Ring2][Ring1][#Branch2][Ring2][Ring1][C][C@@H1][Ring1][Branch1][Ring1][O][C][Ring2][Ring2][P][C][Ring2][Branch1][Branch1]

The molecule is a vinca alkaloid, a methyl ester, an organic heterotetracyclic compound, an organic heteropentacyclic compound, a tertiary alcohol, a tertiary amino compound and a primary carboxamide. It has a role as an antineoplastic agent. It derives from a vincaleukoblastine.

SMILES: CCC1(O)CC2CN(CCc3c([nH]c4ccccc34)C(C(=O)OC)(c3cc4c(cc3OC)N(C)C3C(O)(C(N)=O)C(O)C5(CC)C=CCN6CCC43C65)C2)C1