Diisopropylethylamine → HCID 44546731, compound

HRID 1676815Notes

Reaction equation

HRID 1676815 reaction equation
[F:1][C:2]1([F:36])[CH2:8][N:7]([CH2:9][CH2:10][CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[C:6]2[N:18]=[C:19]([NH:22][C:23]3[CH:31]=[CH:30][C:26]([C:27]([OH:29])=O)=[CH:25][C:24]=3[O:32][CH3:33])[N:20]=[CH:21][C:5]=2[N:4]([CH3:34])[C:3]1=[O:35].[CH2:37]([N:39](C(C)C)C(C)C)C.Cl.CN>CN(C)C=O>[F:1][C:2]1([F:36])[CH2:8][N:7]([CH2:9][CH2:10][CH2:11][C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)[C:6]2[N:18]=[C:19]([NH:22][C:23]3[CH:31]=[CH:30][C:26]([C:27]([NH:39][CH3:37])=[O:29])=[CH:25][C:24]=3[O:32][CH3:33])[N:20]=[CH:21][C:5]=2[N:4]([CH3:34])[C:3]1=[O:35]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 6364545Methylamine hydrochlorideHCID 44549065HCID 44549065, compound

Product 1

HCID 44546731HCID 44546731, compoundYield 49%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 0.05 g (0.10 mmole) of 4-[7,7-difluoro-5-methyl-6-oxo-9-(3-phenyl-propyl)-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino]-3-methoxy-benzoic acid (I-281), 0.07 mL (0.40 mmole) of ethyldiisopropyl amine and 0.0074 g (0.11 mmole) of methylamine hydrochloride in 2.0 mL of dimethylformamide was added 0.048 g (0.11 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 0.025 g of 4-[7,7-difluoro-5-methyl-6-oxo-9-(3-phenyl-propyl)-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino]-3-methoxy-N-methyl-benzamide (I-284) 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-cb114c670d944f879d023d715f7114d3
Source dataset
uspto-grants-2011_08
Patent number
US08003785B2

Reaction notes

Loading…