(1S,4R,7R)-4-(((tert-butyldimethylsilyl)oxy)methyl)-8,8-dimethylbicyclo[5.1.0]octan-3-one

(1aR,4S,7S,7aR,7bR)-4-(((tert-butyldimethylsilyl)oxy)methyl)-1,1,7-trimethyl-1a,2,3,4,7,7a-hexahydro-1H-cyclopropa[e]azulen-6(7bH)-one

(1aR,4S,7R,7aR,7bR)-4-(tert-Butyl-dimethyl-silanyloxymethyl)-1,1,7-trimethyl-1a,3,4,7,7a,7b-hexahydro-1H,2H-cyclopropa[e]azulen-6-one

(+)-(1R,2S,4R,7S,8R,11S)-7-tert-butyldimethylsiloxymethyl-3,3,11-trimethyltricyclo(6.3.0.02,4)undecan-10-one

(-)-(1R,2S,4R,7S,8R,11R)-3,3,11-trimethyltricyclo[6.3.0.02,4]undecan-7-ylmethanol