533914-89-5 4,8-Dioxa-3,9-disilaundecan-6-amine,2,2,3,3,9,9,10,10-octamethyl-5-(4-nitrophenyl)-, (5R,6R)- 75683-55-5 (E)-2-Methyl-2-butenoic acid [[(3aR,4R,6Z,10E,11aR)-4-acetoxy-2,3,3a,4,5,8,9,11a-octahydro-10-hydroxymethyl-3-methylene-2-oxocyclodeca[b]furan-6-yl]methyl] ester 75683-56-6 2-Methylpropenoic acid [[(3aR,4R,6Z,10E,11aR)-4-acetoxy-2,3,3a,4,5,8,9,11a-octahydro-10-hydroxymethyl-3-methylene-2-oxocyclodeca[b]furan-6-yl]methyl] ester