Hydrochloric Acid → HCID 86643316, compound

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Reaction Steps

A mixture of 2-({5-[3-(Dimethylamino)propyl]-2-methylpyridin-3-yl}amino)-9-(trifluoromethyl)-5,7-dihydro-6H-pyrimido[5,4-d][1]benzazepine-6-thione (131.0 g, 269 mmol) in 200P ethanol (1.05 L) was heated to reflux. A solution formed. Hydrochloric acid (1.25 M in ethanol, 43 mL, 53.8 mmol) was added slowly. Seeds were added. More hydrochloric acid (1.25 M in ethanol, 172 mL, 215 mmol) was added dropwise over 4 hours. The suspension formed was kept at reflux for 1 hour, then allowed to cool down to room temperature in 5 hours. The product was collected by filtration then washed with EtOH (20 mL). Drying under vacuo at 35° C. overnight afforded 2-({5-[3-(Dimethylamino)propyl]-2-methylpyridin-3-yl}amino)-9-(trifluoromethyl)-5,7-dihydro-6H-pyrimido[5,4-d][1]benzazepine-6-thione Monohydrochloride Salt as a light yellow solid (128 g, HPLC purity >99%, 90.9% yield). LCMS (FA): Rt=6.08 min, m/z=485.2 (M−H). FTIR: 1575, 1434, 1408, 1334, 1315, 1173, 1136, 1116, 1087, 787 cm−1.

Provenance & Evidence