Task: Please create a description for a molecule based on its representation.
Molecule SMILES: CO[C@H]1C[C@H](O[C@H]2CC[C@@]3(C)C(=CC[C@]4(O)[C@@H]3C[C@@H](OC(=O)/C=C(\C)C(C)C)[C@@]3(C)[C@]4(O)CC[C@@]3(O)C(C)=O)C2)O[C@H](C)[C@H]1O
Constraint: Answer the question with full sentences.
Result: The molecule is a steroid glycoside that is 3,8,12,14,17-pentahydroxypregn-5-en-20-one esterified at position 12 by (2E)-3,4-dimethylpent-2-enoic acid and glycosylated at the 3beta-hydroxy group by beta-cymaropyranose (the 3beta,12beta,14beta,17alpha stereoisomer). It is isolated from the roots of Cynanchum auriculatum and displays antineoplastic activity. It has a role as a metabolite and an antineoplastic agent. It is a methyl ketone, a deoxy hexoside, a tertiary alcohol, an enoate ester, a steroid saponin and a tertiary alpha-hydroxy ketone. It derives from a hydride of a pregnane.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
[(3S,8S,9R,10R,12R,13S,14R,17S)-17-acetyl-8,14,17-trihydroxy-3-[(2R,4S,5R,6R)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy-10,13-dimethyl-1,2,3,4,7,9,11,12,15,16-decahydrocyclopenta[a]phenanthren-12-yl] (E)-3,4-dimethylpent-2-enoate
The molecule is a steroid glycoside that is 3,8,12,14,17-pentahydroxypregn-5-en-20-one esterified at position 12 by (2E)-3,4-dimethylpent-2-enoic acid and glycosylated at the 3beta-hydroxy group by beta-cymaropyranose (the 3beta,12beta,14beta,17alpha stereoisomer). It is isolated from the roots of Cynanchum auriculatum and displays antineoplastic activity. It has a role as a metabolite and an antineoplastic agent. It is a methyl ketone, a deoxy hexoside, a tertiary alcohol, an enoate ester, a steroid saponin and a tertiary alpha-hydroxy ketone. It derives from a hydride of a pregnane.