Water → HCID 18442583, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 5-(3,4-dichloro-benzyl)-7,8-dimethoxy-1,3-dihydro-benzo[e][1,4]diazepin-2-one (0.48 g, 1.17 mmol) in glacial acetic acid (1.67 ml) and methanol (9.4 ml) was stirred at 0° C. under nitrogen. Sodium cyanoborohydride (0.148 g, 2.23 mmol) was added portionwise and the reaction mixture was stirred at 0° C. for 30 min, and then at RT for 2 h. Water (17 ml) was added dropwise and the product was extracted with dichloromethane, washed with aqueous 1N ammonia. The organic phase was dried over magnesium sulfate, filtered and the solvent was removed under vacuum. The resulting yellow oil crystallized under HV (0.19 g, 41%).

Provenance & Evidence