、 cis-3-(6-Methoxypyridin-3-yl) 3a,4,6,6a-tetrahydro-pyrrolo[3,4-d]isoxazole-5-carboxylic acid tert-butyl ester 、
N-hydroxy-6-trifluoromethyl-pyridine-3-carboximidic chloride 在
cis-3-(6-Trifluoromethylpyridin-3-yl) 3a,4,6,6a-tetrahydro-pyrrolo[3,4-d]isoxazole-5-carboxylic acid tert-butyl ester 作用下,
以3d was isolated as a white solid after chromatography with 25% ethyl acetate/hexanes的产率得到cis-3-(6-Trifluoromethylpyridin-3-yl) 3a,4,6,6a-tetrahydro-pyrrolo[3,4-d]isoxazole-5-carboxylic acid tert-butyl ester