Ammonium Chloride → HCID 44548918, compound

HRID 1676806Notes

Reaction equation

HRID 1676806 reaction equation
[F:1][C:2]1([F:35])[CH2:8][N:7]([CH2:9][CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[C:6]2[N:17]=[C:18]([NH:21][C:22]3[CH:30]=[CH:29][C:25]([C:26]([OH:28])=O)=[CH:24][C:23]=3[O:31][CH3:32])[N:19]=[CH:20][C:5]=2[N:4]([CH3:33])[C:3]1=[O:34].C([N:38](C(C)C)C(C)C)C.[Cl-].[NH4+]>CN(C)C=O>[F:35][C:2]1([F:1])[CH2:8][N:7]([CH2:9][CH2:10][C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=2)[C:6]2[N:17]=[C:18]([NH:21][C:22]3[CH:30]=[CH:29][C:25]([C:26]([NH2:38])=[O:28])=[CH:24][C:23]=3[O:31][CH3:32])[N:19]=[CH:20][C:5]=2[N:4]([CH3:33])[C:3]1=[O:34]

Participants

5

Reactant 3

HCID 25517Ammonium ChlorideHCID 81531DiisopropylethylamineHCID 44548917HCID 44548917, compound

Product 1

HCID 44548918HCID 44548918, compoundYield 63.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 0.08 g (0.17 mmole) of 4-(7,7-difluoro-5-methyl-6-oxo-9-phenethyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzoic acid (I-275), 0.12 mL (0.64 mmole) of ethyldiisopropyl amine and 0.018 g (0.34 mmole) of ammonium chloride in 2.0 mL of dimethylformamide was added 0.079 g (0.19 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 with dichloromethane 3 times. 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 0.052 g of 4-(7,7-difluoro-5-methyl-6-oxo-9-phenethyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzamide (I-277) as a white solid.

Workup

  1. extractionThe mixture was extracted with dichloromethane 3 times
  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-55768f767add4be688600cbc031dfc38
Source dataset
uspto-grants-2011_08
Patent number
US08003785B2

Reaction notes

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