反应详情

A mixture of 1.0 g (3.15 mmole) of 2-chloro-9-cyclopentyl-7,7-difluoro-5-methyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one (VII-20), 0.572 g (3.78 mmole) of 4-amino-3-methylbenzoic acid, 10 mL of ethanol and 40 mL of 1M hydrochloric acid was heated at reflux for 14 hours. The mixture was cooled and the white precipitate was collected by filtratration, washed with cold water and dried in vacuum to give 0.3251 g of 4-(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methyl-benzoic acid (I-184) as off-white solid.

1. temperaturewas heated
2. temperatureat reflux for 14 hours
3. temperatureThe mixture was cooled
4. customthe white precipitate was collected by filtratration
5. washwashed with cold water
6. customdried in vacuum