3-异恶唑甲酸 、 (2R,6S,13aS,14aR,16aS,Z)-ethyl 6-amino-2-(3-(1,1-difluoroethyl)quinoxalin-2-yloxy)-5,16-dioxo-1,2,3,5,6,7,8,9,10,11,13a,14,14a,15,16,16a-hexadecahydrocyclopropa[e]pyrrolo[1,2-a][1,4]diazacyclopentadecine-14a-carboxylate hydrochloride 在
吡啶 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 32.0h,
以90%的产率得到(2R,6S,13aS,14aR,16aS,Z)-ethyl 2-(3-(1,1-difluoroethyl)quinoxalin-2-yloxy)-6-(isoxazole-3-carboxamido)-5,16-dioxo-1,2,3,5,6,7,8,9,10,11,13a,14,14a,15,16,16a-hexadecahydrocyclopropa[e]pyrrolo[1,2-a][1,4]diazacyclopentadecine-14a-carboxylate