Acetic Acid → HCID 135998427, compound

Participants

Reaction Steps

A mixture of 4-(3-oxo-9-phenyl-3,7,8,9-tetrahydro-2H-pyrido[4,3,2-de]phthalazin-8-yl)benzaldehyde (80 mg, 0.22 mmol), diethylamine (47 mg, 0.65 mmol) and acetic acid (39 mg, 0.65 mmol) in dichloromethane (50 mL) was stirred at room temperature for 60 min. Upon cooling the mixture to 0° C., sodium triacetoxyborohydride (69.3 mg, 0.33 mmol) was added. After the addition, the mixture was stirred at room temperature overnight. Dichloromethane was removed under reduced pressure. The crude product was purified by chromatography (silica gel, dichloromethane/Methanol=50:1) to give the title compound (34 mg, yield 36%). LC-MS (ESI) m/z: 425 (M+H)+. 1H-NMR (400 MHz, CD3OD) δ (ppm): 1.10 (t, 6H), 2.64 (q, 4H), 3.70 (s, 2H), 4.30 (d, J=8.0 Hz, 1H), 4.75 (d, J=8.0 Hz, 1H), 7.06-7.09 (m, 2H), 7.13-7.20 (m, 4 H), 7.22-7.29 (m, 4H), 7.54-7.56 (dd, J=8.0 Hz, 1H), 7.62-7.64 (m, 1H).

Provenance & Evidence