反应 #3691463
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US06750218B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: In 10 ml of toluene was suspended 593.5 mg (2.16 mmol) of 6,7-dimethoxy-4-piperazinylquinazoline obtained by the method described in South African Patent No. 67 06512 (1968), and 362.6 ml (2.16 mmol) of 4-(chloromethyl)phenyl isocyanate was added thereto, followed by stirring at room temperature for 3 hours. After the reaction mixture was filtered, the obtained crystals were washed with diisopropyl ether and dried under reduced pressure to give 916.8 mg (2.08 mmol, 96%) of N-[4-(chloromethyl)phenyl]-4-(6,7-dimethoxy-4-quinazolinyl)-1-piperazinecarboxamide. In 10 ml of dimethylformamide was dissolved 422.9 mg (0.96 mmol) of the obtained N-[4-(chloromethyl)phenyl]-4-(6,7-dimethoxy-4-quinazolinyl)-1-piperazinecarboxamide, and 0.28 ml (2.83 mmol) of piperidine was added thereto, followed by stirring at room temperature for 7 hours. Then, the reaction mixture was poured into water and the precipitated crystals were collected by filtration, followed by purification by silica gel column chromatography to give 430.9 mg (0.88 mmol) of the desired compound as colorless crystals. obtained by the method After the reaction mixture was filtered the obtained crystals were washed with diisopropyl ether dried under reduced pressure
来源 ID: ord-41064e09890047d5955aa73b6faae359