Sodium hydride → HCID 21525558, compound

Participants

Reaction Steps

In the manner given in Example 25, to 6,7-dimethyl-9-[(dipropylamino)acetyl]-3H-pyrido[3,2-c]-s-triazolo[4,3-a]-[1,5]benzodiazepin-3-one in dimethylformamide is added a solution of sodium hydride in mineral oil. The mixture is allowed to react at about 95° C. for 40 minutes and after cooling 3-(dimethylamino)propylchloride in xylene is added. The mixture is kept at 95°-100° C. for a period of 22 hours, evaporated and worked up as in example 21 to give 6,7-dimethyl-2,9-dihydro-2-[3-(dimethylamino)-propyl]-9-[(dipropylamino)acetyl]-3H-pyrido[3,2-c]-s-triazolo[4,3-a][1,5]benzodiazepine-3-one.

Provenance & Evidence