Sodium Methoxide → HCID 178456476, compound

Participants

Reaction Steps

3-Amino-7-benzyl-2-(5-chloro-2-oxopentyl)-5-propylpyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione (0.8 g) was suspended in methanol (20 ml). To the suspension was added a solution of 28% NaOMe in methanol (4 ml). The mixture was stirred at room temperature for 30 minutes and then at 60° C. for 3 hours. The reaction solution was concentrated to dryness. The residue was dissolved in methylene chloride, washed with water and concentrated to dryness to obtain crude crystals. Recrystallization from isopropyl ether gave colorless crystals (0.52 g), m.p. 264°-265° C.

Provenance & Evidence