Benzenamine, 4-(4-morpholinyl)- → 6-Methoxy-8-(4-methyl-piperazin-1-yl)-4-oxo-4H-chromene-2-carboxylic acid (4-morpholin-4-yl-phenyl)-amide

HRID 2414519Notes

Reaction equation

HRID 2414519 reaction equation
Cl.[CH3:2][O:3][C:4]1[CH:5]=[C:6]2[C:11](=[C:12]([N:14]3[CH2:19][CH2:18][N:17]([CH3:20])[CH2:16][CH2:15]3)[CH:13]=1)[O:10][C:9]([C:21]([OH:23])=O)=[CH:8][C:7]2=[O:24].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.ON1C2C=CC=CC=2N=N1.[N:57]1([C:63]2[CH:69]=[CH:68][C:66]([NH2:67])=[CH:65][CH:64]=2)[CH2:62][CH2:61][O:60][CH2:59][CH2:58]1>CN(C)C1C=CN=CC=1.CN(C)C=O.C(N(CC)CC)C>[N:57]1([C:63]2[CH:64]=[CH:65][C:66]([NH:67][C:21]([C:9]3[O:10][C:11]4[C:6]([C:7](=[O:24])[CH:8]=3)=[CH:5][C:4]([O:3][CH3:2])=[CH:13][C:12]=4[N:14]3[CH2:15][CH2:16][N:17]([CH3:20])[CH2:18][CH2:19]3)=[O:23])=[CH:68][CH:69]=2)[CH2:58][CH2:59][O:60][CH2:61][CH2:62]1

Participants

8

Reactant 4

HCID 75655Benzenamine, 4-(4-morpholinyl)-HCID 757711-HydroxybenzotriazoleHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 692667556-Methoxy-8-(4-Methyl-piperazin-1-yl)-4-oxo-4H-chromene-2-carboxylic acid hydrochloride

Product 1

HCID 235333236-Methoxy-8-(4-methyl-piperazin-1-yl)-4-oxo-4H-chromene-2-carboxylic acid (4-morpholin-4-yl-phenyl)-amide

Reagents, catalysts & solvents 3

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

6-Methoxy-8-(4-Methyl-piperazin-1-yl)-4-oxo-4H-chromene-2-carboxylic acid hydrochloride (Reference Example 2) (3.0 g, 8.5 mmol), TBTU (5.5 g, 17 mmol), 1-hydroxybenztriazole (2.6 g, 17 mmol), 4-dimethylaminopyridine (0.05 g, catalytic) and commercially available 4-morpholin-4-yl-aniline (1.66 g, 9.3 mmol) were dissolved in dimethylformamide (100 mL). Triethylamine (3.5 mL, 25 mmol was added and this mixture stirred at room temperature for 17 hours. The reaction mixture was concentrated under vacuum and the residue was partitioned between chloroform (400 mL) and saturated aqueous sodium bicarbonate (50 mL). The organic′layer was separated, dried (Na2SO4), vacuum-filtered and concentrated under vacuum. The residue was purified by chromatography on silica eluted with 2-5% methanol in chloroform and then triturated with ether to yield a yellow powder. (1.6 g=39%) LCMS-m/z=479.5 mp=234-236° C.

Workup

  1. concentrationThe reaction mixture was concentrated under vacuum
  2. customthe residue was partitioned between chloroform (400 mL) and saturated aqueous sodium bicarbonate (50 mL)
  3. customThe organic′layer was separated
  4. dry with materialdried (Na2SO4)
  5. filtrationvacuum-filtered
  6. concentrationconcentrated under vacuum
  7. customThe residue was purified by chromatography on silica
  8. washeluted with 2-5% methanol in chloroform
  9. customtriturated with ether
  10. customto yield a yellow powder

Sources & evidence

ORD record
ord-6265a0a0aa114d00a65d1a27f7f585d8
Source dataset
uspto-grants-2004_11
Patent number
US06812225B2

Reaction notes

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