(R)-4-O-<3-<1-<<(Phenylmethoxy)carbonyl>amino>-1-(methoxycarbonyl)methyl>phenoxy>-N-<(1,1-dimethylethoxy)carbonyl>-D-tyrosine α-(2-bromoethyl) ester 在
sodium iodide 作用下,
以
丙酮 为溶剂,
反应 7.0h,
以83%的产率得到(R)-4-O-<3-<1-<<(Phenylmethoxy)carbonyl>amino>-1-(methoxycarbonyl)methyl>phenoxy>-N-<(1,1-dimethylethoxy)carbonyl>-D-tyrosine α-(2-iodoethyl) ester