(S)-3-amino-7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-2,3-dihydrobenzo[b][1,4]oxazepin-4(5H)-one 、
3-Cyclopropylimidazo[2,1-b][1,3]thiazole-6-carboxylic acid 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
二氯甲烷 为溶剂,
以75 %的产率得到(S)-3-cyclopropyl-N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)imidazo[2,1-b]thiazole-6-carboxamide