Methylamine → 4-(9-cyclopentyl-7,7-difluoro-6-oxo-5-propyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-N-methyl-benzamide

HRID 1676680Notes

Reaction equation

HRID 1676680 reaction equation
[CH:1]1([N:6]2[CH2:12][C:11]([F:14])([F:13])[C:10](=[O:15])[N:9]([CH2:16][CH2:17][CH3:18])[C:8]3[CH:19]=[N:20][C:21]([NH:23][C:24]4[CH:32]=[CH:31][C:27]([C:28]([OH:30])=O)=[CH:26][CH:25]=4)=[N:22][C:7]2=3)[CH2:5][CH2:4][CH2:3][CH2:2]1.F[P-](F)(F)(F)(F)F.[CH3:40][N:41](C(N(C)C)=[N+]1C2C(=NC=CC=2)[N+]([O-])=N1)C.C(N(C(C)C)CC)(C)C.CN>O1CCCC1.C(OCC)(=O)C.O.CN(C)C=O>[CH:1]1([N:6]2[CH2:12][C:11]([F:14])([F:13])[C:10](=[O:15])[N:9]([CH2:16][CH2:17][CH3:18])[C:8]3[CH:19]=[N:20][C:21]([NH:23][C:24]4[CH:25]=[CH:26][C:27]([C:28]([NH:41][CH3:40])=[O:30])=[CH:31][CH:32]=4)=[N:22][C:7]2=3)[CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

9

Reactant 4

HCID 6329MethylamineHCID 81531DiisopropylethylamineHCID 580151554-(9-cyclopentyl-7,7-difluoro-6-oxo-5-propyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-benzoic acidHCID 178484293HCID 178484293, compound

Product 1

HCID 580150944-(9-cyclopentyl-7,7-difluoro-6-oxo-5-propyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-N-methyl-benzamideYield 52.7%

Reagents, catalysts & solvents 4

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a mixture of 0.055 g (0.12 mmole) of 4-(9-cyclopentyl-7,7-difluoro-6-oxo-5-propyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-benzoic acid (I-144) and 0.06 g (0.15 mmole) of 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium-3-oxide hexafluorophosphate and 2 mL of dimethylformamide was added 0.03 mL (0.186 mmole) of diisopropylethylamine. After stirring at room temperature for 30 minutes 0.09 mL (0.186 mmole) of 2M methylamine in tetrahydrofuran was then added. The mixture was stirred at room temperature for 18 hours. The mixture was diluted with ethyl acetate and water. The aqueous phase was twice extracted with ethyl acetate, and the combined organic layers were washed with water, brine, dried anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography eluting with hexanes-ethyl acetate (30:70) to give 0.029 g of 4-(9-cyclopentyl-7,7-difluoro-6-oxo-5-propyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-N-methyl-benzamide (I-146).

Workup

  1. additionwas then added
  2. extractionThe aqueous phase was twice extracted with ethyl acetate
  3. washthe combined organic layers were washed with water, brine, dried anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel chromatography
  7. washeluting with hexanes-ethyl acetate (30:70)

Sources & evidence

ORD record
ord-19e1ab1ffe7a468da9130e988db74288
Source dataset
uspto-grants-2011_08
Patent number
US08003785B2

Reaction notes

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