[(1S,5S)-2-((1R,2R,4S,6R)-4-Acetyl-1-methyl-3,7-dioxa-bicyclo[4.1.0]hept-2-ylmethyl)-5-isopropyl-1-methyl-cyclopent-2-enyl]-acetaldehyde 生成 Acetic acid 1-{(1R,2R,4S,6R)-2-[(4S,5S)-5-(2-acetoxy-ethyl)-4-isopropyl-5-methyl-cyclopent-1-enylmethyl]-1-methyl-3,7-dioxa-bicyclo[4.1.0]hept-4-yl}-ethyl ester