2-[(3E,7Z,13E)-(2R,10S,12S)-10-Hydroxy-2-methoxy-11,11-dimethyl-12-(2-trimethylsilanyl-ethoxymethoxy)-pentadeca-3,7,13-trien-5-ynyl]-oxazole-4-carboxylic acid methyl ester 、
2-[(3E,7Z,13E)-(2R,10S,12S)-10-(tert-Butyl-dimethyl-silanyloxy)-2-methoxy-11,11-dimethyl-12-(2-trimethylsilanyl-ethoxymethoxy)-pentadeca-3,7,13-trien-5-ynyl]-oxazole-4-carboxylic acid 在
4-二甲氨基吡啶 、 Cinanserin hydrochloride 作用下,
以
甲苯 为溶剂,
反应 36.0h,
生成 methyl 2-[(2R,3E,7Z,10S,12S,13E)-10-[2-[(2R,3E,7Z,10S,12S,13E)-10-[tert-butyl(dimethyl)silyl]oxy-2-methoxy-11,11-dimethyl-12-(2-trimethylsilylethoxymethoxy)pentadeca-3,7,13-trien-5-ynyl]-1,3-oxazole-4-carbonyl]oxy-2-methoxy-11,11-dimethyl-12-(2-trimethylsilylethoxymethoxy)pentadeca-3,7,13-trien-5-ynyl]-1,3-oxazole-4-carboxylate