重氮甲烷 、
(S)-3,3,3-Trifluoro-2-methoxy-2-phenyl-propionic acid (S)-2-allyl-4,4-dimethyl-3,5-dioxo-tetrahydro-furan-2-ylmethyl ester 在
ruthenium trichloride 、
sodium periodate 作用下,
生成 (S)-3,3,3-Trifluoro-2-methoxy-2-phenyl-propionic acid (S)-2-methoxycarbonylmethyl-4,4-dimethyl-3,5-dioxo-tetrahydro-furan-2-ylmethyl ester