ethyl 1-cyclopropyl-1,4-dihydro-6-fluoro-8-methoxy-4-oxo-7-[(trifluoromethyl-sulfonyl)oxy]-quinoline-3-carboxylate 、
2-benzyl-3S-methyl-7-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,2,3,4,6,8a-hexahydro-pyrrolo[1,2S-a]pyrazine 在
四(三苯基膦)钯 cesium fluoride 作用下,
以
四氢呋喃 为溶剂,
反应 7.5h,
生成 7-(2-benzyl-3S-methyl-1,2,3,4,6,8a-hexahydro-pyrrolo[1,2S-a]pyrazin-7-yl)-1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid ethyl ester