Pyridine → HCID 178435029, compound

Participants

Reaction Steps

From 0.43 g (0.0017 mol) of 2,3-dimethyl-4-oxo-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidine-7-carbonitrile (Example 32), 0.33 g (0.0051 mol) of sodium azide and 0.3 g (0.0056 mol) of ammonium chloride in 80 ml of dimethylformamide, following the procedure of Example 34, there is obtained 0.14 g of 2,3-dimethyl-7-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidin-4-one with pyridine (1:0.6); mp 292°-294° C. (dec) after recrystallization from pyridine.

Provenance & Evidence