trans-5-[((1R,2S)-1-tert-butoxycarbonyl-1-vinylcyclopropyl)carbamoyl]-3-(7-methoxy-2-phenylquinolin-4-yloxy)cyclopent-1-enecarboxylic acid 、
tert-butyl 2-(hex-5-en-1-yl)hydrazinecarboxylate 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以81%的产率得到(1R,2S)-1-{[2-(N'-tert-butoxycarbonyl-N-hex-5-enyl-hydrazinocarbonyl)-4-(7-methoxy-2-phenyl-quinolin-4-yloxy)-cyclopent-2-enecarbonyl]-amino}-2-vinyl-cyclopropanecarboxylic acid tert-butyl ester