(2E,4E,6E,8E,10E)-2,7,11-trimethyl-12-oxo-13-<2,6,6-trimethyl-4-(triethylsiloxy)cyclohex-1-enyl>trideca-2,4,6,8,10-pentaenal 、 [(E)-5-((2R,4S)-4-Acetoxy-2-hydroxy-2,6,6-trimethyl-cyclohexylidene)-3-methyl-penta-2,4-dienyl]-triphenyl-phosphonium; chloride 在
吡啶 、
sodium methylate 、
乙酸酐 作用下,
生成 Acetic acid (1S,3R)-3-hydroxy-3,5,5-trimethyl-4-[(3E,5E,7E,9E,11E,13E,15E)-3,7,12,16-tetramethyl-17-oxo-18-((R)-2,6,6-trimethyl-4-triethylsilanyloxy-cyclohex-1-enyl)-octadeca-1,3,5,7,9,11,13,15-octaenylidene]-cyclohexyl ester