Dimethylamine → HCID 178473725, compound

Participants

Reaction Steps

A solution of Compound B (7 g) and dimethylamine (2.0 M in THF, 75 mL, 150 mmol) in DMF (150 mL) was warmed to 80° C. (sealed tube) for 30 hr. The DMF was removed. The residue was passed through a short silica gel colum (5% MeOH, 0.5% NH4OH in CH2Cl2). The eluant was evaporated and the residue was purified by reverse phase preparative HPLC (gradient of aqueous methanol with 0.1% TFA) and converted to the HCl salt to provide Compound C as an off white solid (5.0 g, 60% from Compound D of Example 226) MS: (M+H)+ 544

Provenance & Evidence