5-[(4,4,8-trimethyl-3,4-dihydro-2H-chromen-6-yl)oxy]-2-furoic acid 、 5-[(4,4,7-trimethyl-3,4-dihydro-2H-chromen-6-yl)oxy]-2-furoic acid 、
6-肼基-1,3,4-三甲基-1H-吡唑并[3,4-b]吡啶 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
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 16.0h,
生成
5-[(4,4,8-trimethyl-3,4-dihydro-2H-chromen-6-yl)oxy]-N'-(1,3,4-trimethyl-1H-pyrazol[3,4-b]pyridin-6-yl)-2-furohydrazide 、 5-[(4,4,8-Trimethyl-3,4-dihydro-2H-chromen-6-yl)oxy]-N'-(1,3,4-trimethyl-1H-pyrazolo[3,4-b]pyridin-6-yl)-2-furohydrazide