(S)-(-)-α-甲氧基-α-(三氟甲基)苯乙酸 、
6-hydroxy-2-(2-hydroxy-2-phenylethyl)chromone 在
4-二甲氨基吡啶 、
N,N'-二环己基碳二亚胺 作用下,
以
氯仿 为溶剂,
反应 6.0h,
生成 (S)-3,3,3-Trifluoro-2-methoxy-2-phenyl-propionic acid (R)-2-[4-oxo-6-((S)-3,3,3-trifluoro-2-methoxy-2-phenyl-propionyloxy)-4H-chromen-2-yl]-1-phenyl-ethyl ester 、 (S)-3,3,3-Trifluoro-2-methoxy-2-phenyl-propionic acid (S)-2-[4-oxo-6-((S)-3,3,3-trifluoro-2-methoxy-2-phenyl-propionyloxy)-4H-chromen-2-yl]-1-phenyl-ethyl ester