Pyridine → HCID 89719310, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl 4-((3-((3-((tert-butoxycarbonyl)amino)propyl)(methyl)amino)propyl)amino)-2-(3-(2,2,2-trifluoroacetyl)benzyl)-9H-pyrimido[4,5-b]indole-7-carboxylate (0.180 g, 0.274 mmol), hydroxylamine hydrochloride (0.023 g, 0.329 mmol) and pyridine (0.355 mL) in MeOH (1.9 mL) was heated in a microwave oven to 65° C. for 48 hours. After concentration of the reaction mixture to dryness, a solution of the residue was washed with sat. NaHCO3 (15 mL), the organic layer was dried over anh. MgSO4, filtered and concentrated to dryness to afford methyl 4-((3-((3-((tert-butoxycarbonyl)amino)propyl)(methyl)amino)propyl)amino)-2-(3-(2,2,2-trifluoro-1-(hydroxyimino)ethyl)benzyl)-9H-pyrimido[4,5-b]indole-7-carboxylate (184 mg, 100% yield) as a light yellow foam: MS m/z 672.3 (M+H)+; HPLC 96.0% @ 220 nm and 91.4% @ 254 nm, RT=2.01 minutes.

Provenance & Evidence