Water → (+)-4-(1,1-dimethyl-5-phenyl-2,3,4,5-tetrahydro-1H-benzo[c]azepin-8-yl)morpholine, tartrate salt

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Reaction Steps

To a solution of the (−)-8-morpholinylbenzazepine (20 mg, 0.058 mmol) form step H above in methanol (1 mL) was added L-tartaric acid (8.6 mg, 0.058 mmol). After the mixture was stirred at room temperature for 10 minutes, water (20 mL) was added. The resulting solution was lyophilized overnight to give (−)-4-(1,1-dimethyl-5-phenyl-2,3,4,5-tetrahydro-1H-benzo[c]azepin-8-yl)morpholine, tartrate salt (23.5 mg, 91%, AUC HPLC >99%) as an white solid: 1H NMR (CD3OD, 500 MHz) δ 7.42-7.24 (m, 5H), 7.07 (s, 1H), 6.74 (d, J=8.7 Hz, 1H), 6.56 (d, J=8.7 Hz, 1H), 4.56 (d, J=10.9 Hz, 1H), 4.39 (s, 2H), 3.81 (t, J=4.7 Hz, 4H), 3.63 (br, 1H), 3.35 (br, 1H), 3.31 (s, 3H), 3.11 (t, J=4.7 Hz, 4H), 2.45 (br, 1H), 2.35 (br, 1H), 1.89 (s, 3H), 1.85 (s, 3H); ESI MS m/z 337 [M+H]+.

Provenance & Evidence