(2R,3S)-2-methoxycarbonylmethyl-3-hydroxy-4-cyclopentenone 、
Boc-Phe-OPfp 在
4-二甲氨基吡啶 、
2-methoxycarbonylmethyl-3-hydroxy-4-cyclopenten-1-one 作用下,
以
苯 为溶剂,
反应 1.0h,
生成 (S)-N-Boc-phenylalanine (1R,5S)-5-methoxycarbonylmethyl-4-oxo-2-cyclopentenyl ester 、 (S)-N-Boc-phenylalanine (1S,5R)-5-methoxycarbonylmethyl-4-oxo-2-cyclopentenyl ester