(3S,5R,8S,10S,13R,14S,17R)-17-((R)-1,5-Dimethyl-4-methylene-hexyl)-4,4,10,13,14-pentamethyl-2,3,4,5,6,7,8,10,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol 24-Methylene-24(25)-dihydroparkeol AIDS-113408 AIDS113408