(2S,3S)-3-[tert-butyl(dimethyl)silyl]oxy-2-methyl-N-[(6R)-7-oxo-1-phenylmethoxy-5,6-dihydro-2H-azepin-6-yl]tetradecanamide 在
Amberlyst 作用下,
以
甲醇 为溶剂,
以100%的产率得到(2S,3S)-3-hydroxy-2-methyl-N-[(6R)-7-oxo-1-phenylmethoxy-5,6-dihydro-2H-azepin-6-yl]tetradecanamide