Dimethylformamide → 2-Chloro-9-cyclobutyl-7,7-difluoro-5-methyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one

HRID 1676538Notes

Reaction equation

HRID 1676538 reaction equation
[Cl:1][C:2]1[N:3]=[CH:4][C:5]2[NH:11][C:10](=[O:12])[C:9]([F:14])([F:13])[CH2:8][N:7]([CH:15]3[CH2:18][CH2:17][CH2:16]3)[C:6]=2[N:19]=1.[CH3:20]N(C)C=O.C(=O)([O-])[O-].[Cs+].[Cs+].IC>O>[Cl:1][C:2]1[N:3]=[CH:4][C:5]2[N:11]([CH3:20])[C:10](=[O:12])[C:9]([F:14])([F:13])[CH2:8][N:7]([CH:15]3[CH2:18][CH2:17][CH2:16]3)[C:6]=2[N:19]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 6328Methyl iodideHCID 10796Cesium carbonateHCID 866375022-Chloro-9-cyclobutyl-7,7-difluoro-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one

Product 1

HCID 866375032-Chloro-9-cyclobutyl-7,7-difluoro-5-methyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a mixture of 5.5 g (0.0191 mole) of 2-chloro-9-cyclobutyl-7,7-difluoro-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one (VI-1), 25 mL of dimethylformamide and 9.4 g (0.0287 mole) of cesium carbonate was added 10.9 g (0.0764 mole) of iodomethane. The mixture was stirred for 3 hours, then 80 mL of water was added and the solid collected by suction filtration to give 4.8 g of 2-chloro-9-cyclobutyl-7,7-difluoro-5-methyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one (VII-1).

Workup

  1. filtrationthe solid collected by suction filtration

Sources & evidence

ORD record
ord-e5c953a508954cd1bb59a66097cacd56
Source dataset
uspto-grants-2011_08
Patent number
US08003785B2

Reaction notes

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