4.
Name: 2-Butenoic acid,2-methyl-,(3aR,4S,8aR,- 14aR)-1,3,3a,4,14,14a-hexahydro-7,8- dimethoxy-1-oxobenzo[3,4]furo[3',4':6,7]cycloocta[ 1,2-f][1,3]benzodioxol-4-yl ester,(2Z)-
CAS: 85915-63-5



5.
Name: Butanoic acid,3-hydroxy-2-methyl-,(3S,4aS,- 5S,6S,7S,11S,12aS)-3,5,11-tris(acetyloxy)-1,2,- 3,4,4a,5,6,7,8,11,12,12a-dodecahydro-9,12a,13,- 13-tetramethyl-4-methylene-6,10- methanobenzocyclodecen-7-yl ester,(2R,3S)-
CAS: 139713-81-8



7.
Name: [(9R,10R,13S,14R,17S)-17-acetyl-3-ethoxy-6,10,13-trimethyl-16-methylidene-2,9,11,12,14,15-hexahydro-1H-cyclopenta[a]phenanthren-17-yl] acetate
CAS: 2919-67-7


