tert-butyl N-[[(1R,21S,24S)-24-[[(1R,2S)-1-(cyclopropylsulfonylcarbamoyl)-2-ethenylcyclopropyl]carbamoyl]-16,16-dimethyl-3,19,22-trioxo-2,18-dioxa-4,20,23-triazatetracyclo[21.2.1.14,7.06,11]heptacosa-6,8,10,12-tetraen-21-yl]methyl]carbamate 、
丙烯酸 在
盐酸 、
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
1,4-二氧六环 、
乙腈 为溶剂,
反应 1.0h,
以68%的产率得到(1R,21S,24S)-N-[(1R,2S)-1-(cyclopropylsulfonylcarbamoyl)-2-ethenylcyclopropyl]-16,16-dimethyl-3,19,22-trioxo-21-[(prop-2-enoylamino)methyl]-2,18-dioxa-4,20,23-triazatetracyclo[21.2.1.14,7.06,11]heptacosa-6,8,10,12-tetraene-24-carboxamide