Triethylamine → HCID 76287263, compound

Participants

Reaction Steps

(8S,9aR)-8-[(5-Cyclopropylpyrazin-2-yl)oxy]octahydro-5H-pyrrolo[1,2-a][1,4]diazepin-5-one hydrochloride (35 mg, 0.108 mmol, 1.0 equivalent, prepared as described in Example 46, Part H) was suspended in dichloromethane (1.0 mL) in a 4-mL scintillation vial. Triethylamine (32.7 mg, 0.323 mmol, 3.0 equivalents) was added followed by the addition of 4-(trifluoromethyl)benzene-1-sulfonyl chloride (34.3 mg, 0.140 mmol, 1.3 equivalents). The resulting solution was allowed to stir for 30 minutes at room temperature. The reaction solution was loaded directly onto a 4 g silica gel column and eluted with 0:100 to 50:50 ethyl acetate:heptanes (flow rate=18 mL/minute) over 20 minutes to give the title compound as a white solid (30 mg, 56%). 1H NMR (400 MHz, CDCl3) δ ppm 8.03 (d, J=1.3 Hz, 1H), 7.91 (dd, J=9.0, 4.9 Hz, 3H), 7.82 (d, J=8.4 Hz, 2H), 5.43 (t, J=3.9 Hz, 1H), 4.25 (dd, J=16.5, 9.6 Hz, 1H), 4.16-3.95 (m, 3H), 3.57 (dd, J=13.7, 4.0 Hz, 1H), 2.96-2.83 (m, 1H), 2.82-2.64 (m, 2H), 2.65-2.52 (m, 1H), 2.47 (dd, J=13.4, 9.3 Hz, 1H), 2.04-1.84 (m, 2H), 1.08-0.77 (m, 4H); MS (ESI+) m/z 497.0 (M+H)+; [a]D23.8=−0.15 (c=0.13, CH3OH).

Provenance & Evidence