(10E,12E,14E)-(4R,8R)-4-(tert-Butyl-dimethyl-silanyloxy)-8,14-dimethyl-hexadeca-10,12,14-trienoic acid (S)-1-acetyl-5-benzyl-2-oxo-2,5-dihydro-1H-pyrrol-3-yl ester 以
均三甲苯 为溶剂,
生成 (3S,3aS,10S,14R,18aR,E)-2-acetyl-3-benzyl-14-((tert-butyldimethylsilyl)oxy)-4,5,10-trimethyl-3,3a,4,6a,9,10,11,12,13,14,15,16-dodecahydro-1H-[1]oxacyclotetradecino[2,3-d]isoindole-1,17(2H)-dione 、 (3S,3aS,10S,14R,18aR,E)-2-acetyl-3-benzyl-14-((tert-butyldimethylsilyl)oxy)-4,5,10-trimethyl-3,3a,4,6a,9,10,11,12,13,14,15,16-dodecahydro-1H-[1]oxacyclotetradecino[2,3-d]isoindole-1,17(2H)-dione