Dimethylamine → HCID 71230715, compound

Participants

Reaction Steps

To a solution of Intermediate 49 (100 mg, 0.202 mmol) in DCM/MeOH/AcOH (4 ml, 100:93:7) was added dimethylamine (91 mg, 2.02 mmol). The mixture was stirred for 15 min at r.t. before adding sodium cyanoborohydride (12.7 mg, 0.202 mmol). The mixture was stirred at r.t. overnight and then quenched with 2N HCl (3 ml). After additional stirring for 30 min water and 2N NaOH were added. The mixture was extracted with EtOAc, and the organic layer was dried, filtered, and evaporated to dryness. The resulting residue was purified using flash chromatography (silica gel, EtOAc/MeOH/NH4OH gradient) to yield Example 56.

Provenance & Evidence