(2R,6S)-2-[[[(phenylmethoxy)carbonyl]oxy]methyl]-3,6-dihydro-6-[3-[[tris(1-methylethyl)silyl]oxy]propyl]-6-(2-oxoethyl)-1(2H)-pyridinecarboxylic acid phenylmethyl ester 、
甲基三苯基溴化膦 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 、
甲苯 为溶剂,
以86%的产率得到(2S,6R)-5,6-dihydro-6-[[[(phenylmethoxy)carbonyl]oxy]methyl]-2-(2-propenyl)-2-[3-[[tris(1-methylethyl)silyl]oxy]propyl]-1(2H)-pyridinecarboxylic acid phenylmethyl ester