Ammonia → HCID 59465198, compound

Participants

Reaction Steps

A solution of methyl (2S)-2-[(2-chloro-5-nitro-pyrimidin-4-yl)-[(4-methoxy-3,5-dimethyl-pyridin-2-yl)methyl]amino]propanoate (Intermediate 3)(1.0 g, 2.44 mmol) in THF (30 mL) was treated with ammonia (28% in water, 3 mL). The reaction mixture was stirred at room temperature for 2.5 hours, then partitioned between DCM and water. The organic solution was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by MPLC on silica using gradient elution (30% ethyl acetate/isohexane to 100% ethyl acetate). Intermediate 1 was obtained as a yellow foam (770 mg, 81%); 1H NMR spectrum: (400 MHz CDCl3) δ1.63 (3H, d), 2.10 (3H, s), 2.22 (3H, s), 3.65 (3H, s), 3.74 (3H, s), 4.44 (1H, d), 4.64-4.72 (2H, m), 5.24 (2H, s), 8.14 (1H, s), 8.66 (1H, s); Mass spectrum: (M+H)+ 391.

Provenance & Evidence