(Z)-2-[(1-tert-Butoxycarbonylamino-2-cyclohexyl-ethyl)-methoxy-phosphinoylmethyl]-3-cyclohexyl-acrylic acid methyl ester 在
N-溴代丁二酰亚胺(NBS) 作用下,
以17%的产率得到(Z)-3-(1-Bromo-cyclohexyl)-2-[(1-tert-butoxycarbonylamino-2-cyclohexyl-ethyl)-methoxy-phosphinoylmethyl]-acrylic acid methyl ester