SMILES: C[C@@H]1[C@H]([C@H](C[C@@H](O1)O[C@H]2CC[C@@]3([C@H]4C[C@H]([C@@]5([C@@](CC[C@@]5([C@@]4(CC=C3C2)O)O)(C(=O)C)O)C)OC(=O)/C=C(\\C)/C(C)C)C)OC)O
Description: 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.