反应详情

1-Cyano-2-methyl-3-pyridin-4-yl-isothiourea (573 mg, 3.00 mmol) and 5-(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-yloxy)-pentylamine (886 mg, 3.00 mmol) were dissolved in pyridine (20 mL). Triethylamine (2 mL, 14 mmol) was added followed by (4-dimethylamino)pyridine (5.0 mg, 0.04 mmol). The reaction mixture was stirred at 86□ C. for 12 hours. After cooling to room temperature, the reaction mixture was diluted with diethyl ether (50 mL). The resulting precipitate was collected by filtration and washed with diethyl ether. The crude product was recrystalized from methanol and diethyl ether to give the desired product as a white crystalline solid (yield 85%). 1H NMR (CDCl3, ppm): 8.54 (dd, 2H), 7.41-7.12 (m, 10H), 5.29 (s, 1H), 3.56-3.41 (m, 4H), 3.32 (dd, 2H), 3.05-2.95 (m, 2H), 1.71-1.41 (m, 6H).

1. filtrationThe resulting precipitate was collected by filtration
2. washwashed with diethyl ether
3. customThe crude product was recrystalized from methanol and diethyl ether