Triethylamine → HCID 21947944, compound

HRID 2184472Notes

Reaction equation

HRID 2184472 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([C:8]([OH:10])=O)[C:5]([O:11][CH3:12])=[CH:4][C:3]=1[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[F:19].S(Cl)(Cl)=O.[CH:24]1[CH:25]=[CH:26][N:27]2[CH2:33][C:32]3[CH:34]=[CH:35][CH:36]=[CH:37][C:31]=3[NH:30][CH2:29][C:28]=12.C(N(CC)CC)C>O1CCCC1.ClCCl.CN(C)C=O>[Cl:1][C:2]1[C:3]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=2[F:19])=[CH:4][C:5]([O:11][CH3:12])=[C:6]([C:8]([N:30]2[C:31]3[CH:37]=[CH:36][CH:35]=[CH:34][C:32]=3[CH2:33][N:27]3[CH:26]=[CH:25][CH:24]=[C:28]3[CH2:29]2)=[O:10])[CH:7]=1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 24386Thionyl ChlorideHCID 1554704810,11-Dihydro-5H-benzo[e]pyrrolo[1,2-a][1,4]diazepineHCID 21947829HCID 21947829, compound

Product 1

HCID 21947944HCID 21947944, compound

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolventHCID 8028TetrahydrofuranSolvent2×

Procedure

To a stirred solution of 2-chloro-2′-fluoro-5-methoxy[1,1′-biphenyl]-4-carboxylic acid of Step A (3.80 g, 13.5 mmol) in tetrahydrofuran (20 mL) containing a catalytic amount of N,N-dimethylformamide was added dropwise thionyl chloride (1.77 g, 14.9 mmol). The reaction mixture was stirred for 2 hours, and then added dropwise to a solution of 10,11-dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine (2.49 g, 13.5 mmol) in tetrahydrofuran (20 mL) containing triethylamine (3.0 g, 29.8 mmol). The reaction mixture was stirred for 2 hours, diluted with dichloromethane and washed with saturated aqueous sodium bicarbonate and brine. The organic layer was dried over anhydrous magnesium sulfate, filtered, and evaporated to dryness. Recrystallization of the residue from ethyl acetate/heptane provided the title compound as a pale yellow solid, m.p. 192-194° C., found to be 99.99% pure by analytical HPLC [Primesphere C-18 column (2.0×150 mm); mobile phase: gradient from 10 to 100% of acetonitrile/water containing 0.1% phosphoric acid, 7 minute gradient].

Workup

  1. stirringThe reaction mixture was stirred for 2 hours
  2. washwashed with saturated aqueous sodium bicarbonate and brine
  3. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. customevaporated to dryness
  6. customRecrystallization of the residue from ethyl acetate/heptane

Sources & evidence

ORD record
ord-4d0e8dee87244592aa2920673d8eb054
Source dataset
uspto-grants-2005_05
Patent number
US06900200B2

Reaction notes

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