Acetic Acid → HCID 136186312, compound

Participants

Reaction Steps

To a stirred solution of 4-(3-oxo-9-phenyl-3,7,8,9-tetrahydro-2H-pyrido[4,3,2-de]phthalazin-8-yl)benzaldehyde (367 mg, 1 mmol) in dry DCM (15 mL) was added acetic acid (0.2 mL) followed by pyrrolidine (213 mg, 3 mmol). After the addition, the mixture was stirred at room temperature overnight. Then sodium borohydride (318 mg, 1.5 mmol) was added at 0° C. After the addition, the mixture was stirred at this temperature for 12 hr. DCM was removed under reduced pressure. The residue was washed with ethyl acetate/methanol (10/1) and filtered. The filtrate was concentrated to give the crude product, which was purified by prep-HPLC to give the title compound (62 mg, yield 14%) as white solid. LC-MS (ESI) m/z: 423 (M+1)+. 1H-NMR (400 MHz, DMSO-d6) δ (ppm): 1.82-1.85 (m, 2H), 1.97 (s, 2H), 3.01-3.05 (m, 2H), 3.26 (d, 2H), 4.27 (d, 2H), 4.36 (d, 1H), 4.84 (d, 1H), 7.13-7.23 (m, 6H), 7.36-7.40 (m, 5H), 7.48 (s, 1H), 7.57-7.61 (t, 1H), 12.18 (s, 1H).

Provenance & Evidence