(4bR,6aS,10aS,10bR,12aS)-4b,7,7,10a,12a-Pentamethyl-3,4b,5,6,6a,7,8,9,10,10a,10b,11,12,12a-tetradecahydro-chrysene-1,2-dicarboxylic acid dimethyl ester

isocopal-12-en-15-al

isocopal-13-en-15-al

(4aR,4bS,8aS,10aR)-1,1,4a,7,8a-Pentamethyl-8-vinyl-1,2,3,4,4a,4b,5,6,8a,9,10,10a-dodecahydro-phenanthrene