1-acetoxy-8-hydroxy-3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-9-(phenylsulfonyl)-2(E),6(E)-nonadiene

13-cis-11,12-didehydro-9,10-dihydro-10-hydroxyretinol

吡啶

13-顺式视黄醇

乙酰氯