10-41-3

(2aR,4S,4aR,5Z,6R,11S,12bS,13R)-6,12b-bis(acetyloxy)-4,11-dihydroxy-5-(hydroxymethylidene)-9-(2-hydroxy-3-phenyl-3-{[(phenylcarbonyl)oxy]amino}propanoyl)-4a,8,13-trimethyl-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2