反应详情

By substituting 1-isopropyl-4-hydrazino-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid, ethyl ester for the 1-ethyl-4-hydrazino-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid, ethyl ester and 1-ethoxypropylidene cyanamide for the ethoxymethylene cyanamide in part a and morpholine for the 3-dimethylaminopropylamine in part c of the procedure of Example 1, 2-ethyl-8-isopropyl-4H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidin-5(8H)-one, 5-chloro-2-ethyl-8-isopropyl-8H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidine and 2-ethyl-8-isopropyl-5-morpholino-8H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]triazolo[1,5-a]pryimidine, respectively, are obtained.

1. customrespectively, are obtained