24-Methylcyloart-24(24 1)-en-3 beta-ol ferulate 4-{(E)-3-[(3S,5R,8S,13R,14S,17R)-17-((R)-1,5-Dimethyl-hex-4-enyl)-4,4,13,14-tetramethyl-tetradecahydro-cyclopropa[9,10]cyclopenta[a]phenanthren-3-yloxy]-buta-1,3-dienyl}-2-methoxy-phenol AIDS-076643 AIDS076643