Diisopropylethylamine → 4-(7,7-difluoro-9-isopropyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-N-methyl-benzamide

HRID 1676833

Reaction equation

HRID 1676833 reaction equation
[F:1][C:2]1([F:30])[CH2:8][N:7]([CH:9]([CH3:11])[CH3:10])[C:6]2[N:12]=[C:13]([NH:16][C:17]3[CH:25]=[CH:24][C:20]([C:21]([OH:23])=O)=[CH:19][C:18]=3[O:26][CH3:27])[N:14]=[CH:15][C:5]=2[N:4]([CH3:28])[C:3]1=[O:29].[CH2:31]([N:33](C(C)C)C(C)C)C.Cl.CN>CN(C)C=O>[F:1][C:2]1([F:30])[CH2:8][N:7]([CH:9]([CH3:11])[CH3:10])[C:6]2[N:12]=[C:13]([NH:16][C:17]3[CH:25]=[CH:24][C:20]([C:21]([NH:33][CH3:31])=[O:23])=[CH:19][C:18]=3[O:26][CH3:27])[N:14]=[CH:15][C:5]=2[N:4]([CH3:28])[C:3]1=[O:29]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 6364545Methylamine hydrochlorideHCID 445467354-(7,7-difluoro-9-isopropyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzoic acid

Product 1

HCID 445468904-(7,7-difluoro-9-isopropyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-N-methyl-benzamideYield 99.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 0.08 g (0.19 mmole) of 4-(7,7-difluoro-9-isopropyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzoic acid (I-292), 0.13 mL (0.76 mmole) of ethyldiisopropyl amine and 0.014 g (0.21 mmole) of methylamine hydrochloride in 2.0 mL of dimethylformamide was added 0.082 g (0.21 mmole) of 1-(di-1-pyrrolidinylmethylene)-1H-benzotriazolium 3-oxide hexafluorophosphate. The mixture was stirred at room temperature for 1 hour, then diluted with 10 mL of ice water. The mixture was extracted three times with dichloromethane. The combined organic layers were washed three times with sodium carbonate, three times with brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. Purification by silica gel chromatography, eluting with dichloromethane-methanol (gradient, 100:0-90:10) gave 0.082 g of 4-(7,7-difluoro-9-isopropyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-N-methyl-benzamide (I-295) as a white solid.

Workup

  1. extractionThe mixture was extracted three times with dichloromethane
  2. washThe combined organic layers were washed three times with sodium carbonate, three times with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customPurification by silica gel chromatography
  7. washeluting with dichloromethane-methanol (gradient, 100:0-90:10)

Sources & evidence

ORD record
ord-994c781fb3c941438ccba033128ceb59
Source dataset
uspto-grants-2011_08
Patent number
US08003785B2

Linked notes

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