(S)-2-amino-N-(2-hydroxyethyl)-3,3-dimethylbutanamide hydrochloride 、
1-(4-cyanobenzyl)-7-fluoro-1H-indazole-3-carboxylic acid 在
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
N,N-二甲基甲酰胺 为溶剂,
以80%的产率得到1-(4-cyanobenzyl)-7-fluoro-N-[(1S)-1-{[(2-hydroxyethyl)amino]carbonyl}-2,2-dimethylpropyl]-1H-indazole-3-carboxamide