ChemicalBook CAS DataBase List 2-CHLORO-9-CYCLOPENTYL-7,7-DIFLUORO-5-METHYL-8,9-DIHYDRO-5H-PYRIMIDO[4,5-B][1,4]DIAZEPIN-6(7H)-ONE

2-CHLORO-9-CYCLOPENTYL-7,7-DIFLUORO-5-METHYL-8,9-DIHYDRO-5H-PYRIMIDO[4,5-B][1,4]DIAZEPIN-6(7H)-ONE synthesis

5synthesis methods

Product Name:2-CHLORO-9-CYCLOPENTYL-7,7-DIFLUORO-5-METHYL-8,9-DIHYDRO-5H-PYRIMIDO[4,5-B][1,4]DIAZEPIN-6(7H)-ONE
CAS Number:1062246-03-0
Molecular formula:C13H15ClF2N4O
Molecular Weight:316.73

2-chloro-9-cyclopentyl-7,7-difluoro-5,8-dihydropyrimido[4,5-b][1,4]diazepin-6-one

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2-CHLORO-9-CYCLOPENTYL-7,7-DIFLUORO-5-METHYL-8,9-DIHYDRO-5H-PYRIMIDO[4,5-B][1,4]DIAZEPIN-6(7H)-ONE

1062246-03-0
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Yield:-

Reaction Conditions:

with caesium carbonate in N,N-dimethyl-formamide; for 4 h;

Steps:

102.c

Step c To a solution of 1.4 g (0.0046 mole) of 2-chloro-9-cyclopentyl-7,7-difluoro-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one (VI-100) in 30 mL of dimethylformamide was added 2.27 g (0.0069 mole) of cesium carbonate, followed by 0.87 mL (0.014 mole) of iodomethane. After stirring four hours, the mixture filtered and then concentrated under reduced pressure. Ice water was added to the residue to give a precipitate. The solid was collected by filtration, washed with water and dried under vacuum to give 1.37 g 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-100) as a white solid.

References:

US2008/234255,2008,A1 Location in patent:Page/Page column 54