(3R,4S)-1-Benzoyl-3-methyl-4-phenyl-3-triethylsilanyloxy-azetidin-2-one 在
盐酸 、
lithium hexamethyldisilazane 作用下,
以
乙腈 为溶剂,
反应 4.0h,
生成 [(1S,2S,4S,7R,9S,10S,12R,15S)-4,12-diacetyloxy-15-[(2R,3S)-3-benzamido-2-hydroxy-2-methyl-3-phenylpropanoyl]oxy-1,9-dihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate