p-(Trifluoromethoxy)benzaldehyde → HCID 76287411, compound

Participants

Reaction Steps

To (8S,9aS)-8-[(5-cyclopropylpyrazin-2-yl)oxy]octahydro-5H-pyrrolo[1,2-a][1,4]diazepin-5-one hydrochloride (50 mg, 0.154 mmol, Part D) in anhydrous dichloroethane (0.7 mL) was added 4-(trifluoromethoxy)benzaldehyde (38 mg, 0.2 mmol), and N-ethyl-N-isopropylpropan-2-amine (39.8 mg, 0.308 mmol). After 10 minutes, sodium triacetoxyborohydride (75 mg, 0.354 mmol) was added. The mixture was stirred at room temperature overnight and then concentrated. The residue was purified by chromatography on silica gel (ethyl acetate) to give 33 mg (46.4% yield) of the title compound as a solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 0.83 (m, 2H), 0.98 (m, 2H), 1.82 (m, 1H), 2.12 (m, 1H), 2.20-2.32 (m, 2H), 2.42 (dd, J=12, 8 Hz, 1H), 2.61 (m, 1H), 2.70-2.90 (m, 3H), 3.50 (br d, J=12 Hz, 1H), 3.57 (br d, J=12 Hz, 1H), 3.62-3.72 (m, 2H), 4.12 (m, 1H), 5.29 (m, 1H), 7.31 (d, J=9 Hz, 2H), 7.43 (d, J=9 Hz, 2H), 8.15 (s, 1H), 8.18 (s, 1H); MS (ESI) m/z 463.0 (M+H)+.

Provenance & Evidence