5-[(3,3-dimethylbutanoyl)-amino]-1-(2-fluorobenzyl)-1H-indole-2-carboxylic acid 、
di-(tert-butyl) 5-amino-2-pyridinylimidodicarbonate 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
DMF (N,N-dimethyl-formamide) 为溶剂,
以24%的产率得到di-(tert-butyl) 5-({{5-[(3,3-dimethylbutanoyl)-amino]-1-(2-fluorobenzyl)-1H-indol-2-yl}-carbonyl}-amino)-2-pyridinylimidodicarbonate