SMILES: C[C@@H]1[C@@]23CC[C@H]4[C@]([C@@H]2CC[C@@]1(OC3)O)(CC[C@@]5([C@@]4(CC[C@@]6([C@H]5C[C@](CC6)(C)C(=O)O)C)C)C)C
Description: The molecule is a hexacyclic triterpenoid that is D:A-friedooleanan-29-oic acid substituted by a hydroxy group at position 3 and an epoxy group across positions 3 and 24 (the (3beta,20alpha stereoisomer). Isolated from Salacia macrosperma and Tripterygium wilfordii, it exhibits anti-HIV activity. It has a role as a metabolite and a HIV-1 reverse transcriptase inhibitor. It is a hexacyclic triterpenoid, a hydroxy monocarboxylic acid and a cyclic hemiketal. It derives from a hydride of a friedelane.