(3S,5R,6S,3'R)-5,6-epoxy-7,8-dihydro-7',8'-didehydro-β,β-carotene-3,3'-diol 、
乙酸酐 在
吡啶 作用下,
反应 1.0h,
生成 [(1R)-4-[(3E,5E,7E,9E,11E,13E,15E)-18-[(1S,4S,6R)-4-acetyloxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyloctadeca-3,5,7,9,11,13,15-heptaen-1-ynyl]-3,5,5-trimethylcyclohex-3-en-1-yl] acetate