Water → HCID 46191352, compound

Participants

Reaction Steps

Trifluoroacetic acid (1.6 mL) and water (0.16 mL) were added to 8 mL of CH2Cl2. This mixture was added to 3-[[1-(tert-butoxycarbonyl)-2(S)-azetidinyl]methoxy]-5-[3-(2(S)-methoxy-3-phenylpropyl)phenyl]pyridine (290 mg, 0.59 mmol) at 0° C. under N2. The solution was stirred overnight at room temperature. After concentration in vacuo, the crude product (290 mg) was purified by preparative HPLC (column: SunFire Prep C18, 150×19, 5 μm; UV detection, at 254 nm; mobile phase: A, water with 0.05% CF3COOH; B, CH3CN; 20-60% B in A in 8 min). The product-containing eluate was partially evaporated under reduced pressure (bath 30° C.) to remove CH3CN. The pH of the residue was adjusted to 8.0 with saturated aqueous NaHCO3 solution, and the product was extracted into EtOAc (3×60 mL). The combined organic phases were washed with brine and dried over Na2SO4. After filtration and concentration, the free amine (118 mg, 51%) was obtained as a yellow oil. LC-MS (ESI) m/z 389 (M+H+).

Provenance & Evidence