Triethylamine → N-[1-(4-bromophenyl)-2-(1-pyrrolidinyl)ethyl]-2-(6,7-dichloro-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)-N-methylacetamide

HRID 2114337Notes

Reaction equation

HRID 2114337 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([NH:15][CH3:16])[CH2:9][N:10]2[CH2:14][CH2:13][CH2:12][CH2:11]2)=[CH:4][CH:3]=1.[Cl:17][C:18]1[CH:19]=[C:20]2[C:25](=[CH:26][C:27]=1[Cl:28])[N:24]([CH2:29][C:30]([OH:32])=O)[C:23](=[O:33])[CH2:22]C2.CN([P+]([O:44]N1N=NC2C=CC=CC1=2)(N(C)C)N(C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>CN(C=O)C>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([N:15]([CH3:16])[C:30](=[O:32])[CH2:29][N:24]2[C:25]3[CH:26]=[C:27]([Cl:28])[C:18]([Cl:17])=[CH:19][C:20]=3[O:44][CH2:22][C:23]2=[O:33])[CH2:9][N:10]2[CH2:14][CH2:13][CH2:12][CH2:11]2)=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 57418662(6,7-dichloro-2-oxo-3,4-dihydro-1(2H)-quinolinyl)acetic acidHCID 57425537[1-(4-Bromophenyl)-2-(1-pyrrolidinyl)ethyl]methylamine

Product 1

HCID 57488849N-[1-(4-bromophenyl)-2-(1-pyrrolidinyl)ethyl]-2-(6,7-dichloro-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)-N-methylacetamideYield 25%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of [1-(4-bromophenyl)-2-(1-pyrrolidinyl)ethyl]methylamine (1.61 g, 5.68 mmol) and (6,7-dichloro-2-oxo-3,4-dihydro-1(2H)-quinolinyl)acetic acid (1.73 g, 6.25 mmol) in DMF (20 mL) was added BOP Reagent (3.77 g, 8.52 mmol) and triethylamine (1.72 g, 17.3 mmol). The resultant mixture was stirred at room temperature for 16 h. The mixture was concentrated under reduce pressure. The residue was diluted with ethyl acetate (100 mL) and extracted with 5% NaHCO3 (100 mL) and brine (100 mL). The organic layer was dried (MgSO4) and concentrated. The residue was purified by silica gel chromatography (120 g redisep column, silica 40 um, 60 A, 85 ml/min, A: MeOH, B: CH2Cl2, A: 1% for 20 min) to give 0.76 g (25%) title compound as yellow solid. MS (ES) m/e 545.4 [M+H]+.

Workup

  1. concentrationThe mixture was concentrated
  2. additionThe residue was diluted with ethyl acetate (100 mL)
  3. extractionextracted with 5% NaHCO3 (100 mL) and brine (100 mL)
  4. dry with materialThe organic layer was dried (MgSO4)
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel chromatography (120 g redisep column, silica 40 um, 60 A, 85 ml/min

Sources & evidence

ORD record
ord-822ca58f5c0149889c9db126a815629a
Source dataset
uspto-grants-2008_10
Patent number
US07432258B2

Reaction notes

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