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

HRID 1676578

Reaction equation

HRID 1676578 reaction equation
[CH:1]1([N:6]2[CH2:12][C:11]([F:14])([F:13])[C:10](=[O:15])[N:9]([CH3:16])[C:8]3[CH:17]=[N:18][C:19]([NH:21][C:22]4[CH:30]=[CH:29][C:25]([C:26]([OH:28])=O)=[CH:24][C:23]=4[O:31][CH3:32])=[N:20][C:7]2=3)[CH2:5][CH2:4][CH2:3][CH2:2]1.[S:33]1[CH:37]=[CH:36][C:35]([CH2:38][NH2:39])=[CH:34]1.F[P-](F)(F)(F)(F)F.CN(C(N(C)C)=[N+]1C2C(=NC=CC=2)[N+]([O-])=N1)C.C(N(C(C)C)CC)(C)C>O.C(=O)(O)[O-].[Na+].CN(C)C=O>[CH:1]1([N:6]2[CH2:12][C:11]([F:14])([F:13])[C:10](=[O:15])[N:9]([CH3:16])[C:8]3[CH:17]=[N:18][C:19]([NH:21][C:22]4[CH:30]=[CH:29][C:25]([C:26]([NH:39][CH2:38][C:35]5[CH:36]=[CH:37][S:33][CH:34]=5)=[O:28])=[CH:24][C:23]=4[O:31][CH3:32])=[N:20][C:7]2=3)[CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

8

Reactant 4

HCID 81531DiisopropylethylamineHCID 27763813-ThiophenemethylamineHCID 252529054-(9-Cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[5,4-b][1,4]diazepin-2-ylamino)-3-methoxybenzoic acidHCID 178484293HCID 178484293, compound

Product 1

HCID 445477964-(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-N-thiophen-3-ylmethyl-benzamideYield 23%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 516892Sodium BicarbonateSolvent

Procedure

A mixture of 0.070 g (0.16 mmole) of 4-(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzoic acid (I-22), 0.035 (0.23 mmole) of 3-thiophenemethanamine 0.071 g (0.19 mmole) of 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium-3-oxide hexafluorophosphate, 0.136 mL (0.78 mmole) of diisopropylethyl amine and 2.0 mL of dimethylformamide was stirred for 18 hours. The mixture was diluted with 10 mL of water plus 2 mL of saturated aqueous sodium bicarbonate and then extracted 3 times with 10 mL of ethyl acetate. The combined extracts were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by C18 reverse phase silica gel chromatography, eluting with an acetonitrile-water (gradient, 20:80-100:0) to give 0.020 g of 4-(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-N-thiophen-3-ylmethyl-benzamide (I-33) as a light brown solid.

Workup

  1. extractionextracted 3 times with 10 mL of ethyl acetate
  2. washThe combined extracts were washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by C18 reverse phase silica gel chromatography
  7. washeluting with an acetonitrile-water (gradient, 20:80-100:0)

Sources & evidence

ORD record
ord-c0b567a248d44ecdbc4facf44bde8fc2
Source dataset
uspto-grants-2011_08
Patent number
US08003785B2

Linked notes

Loading…