ethyl 7-(7-((tert-butyl(dimethyl)silyl)oxy)-4,5,6,7-tetrahydro-1-benzothien-2-yl)-1-cyclopropyl-8-methoxy-4-oxo-1,4-dihydro-3-quinolinecarboxylate 、
戴斯-马丁氧化剂 在
potassium carbonate 作用下,
以
二氯甲烷 为溶剂,
以53%的产率得到1-cyclopropyl-8-methoxy-4-oxo-7-(7-oxo-4,5,6,7-tetrahydro-1-benzothien-2-yl)-1,4-dihydro-3-quinolinecarboxylic acid