Triethylamine → 10-{[6-Chloro-3-methoxy-2'-ethoxy-[1,1'-biphenyl]-4-yl]carbonyl}-10,11-dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine

HRID 1830086Notes

Reaction equation

HRID 1830086 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[O:19][CH2:20][CH3:21].S(Cl)(Cl)=O.[CH:26]1[CH:27]=[CH:28][N:29]2[CH2:35][C:34]3[CH:36]=[CH:37][CH:38]=[CH:39][C:33]=3[NH:32][CH2:31][C:30]=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[O:19][CH2:20][CH3:21])=[CH:4][C:5]([O:11][CH3:12])=[C:6]([C:8]([N:32]2[C:33]3[CH:39]=[CH:38][CH:37]=[CH:36][C:34]=3[CH2:35][N:29]3[CH:28]=[CH:27][CH:26]=[C:30]3[CH2:31]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 21947830HCID 21947830, compound

Product 1

HCID 2194775610-{[6-Chloro-3-methoxy-2'-ethoxy-[1,1'-biphenyl]-4-yl]carbonyl}-10,11-dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolventHCID 8028TetrahydrofuranSolvent2×

Procedure

To a stirred solution of the 2-chloro-2′-ethoxy-5-methoxy [1,1′-biphenyl]-4-carboxylic acid of Step A (0.491 g) in tetrahydrofuran (5 mL) containing a catalytic amount of N,N-dimethyl formamide was added dropwise thionyl chloride (0.210 g, 1.76 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 (0.294 g, 1.60 mmol) in tetrahydrofuran (5 mL) containing triethylamine (0.357 g, 3.52 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. Trituration of the residue with methanol provided the title compound as an off-white solid, 99.24% pure by analytical HPLC [Primesphere C-18 column (2.0×150 mm); mobile phase 70/30 acetonitrile/water containing 0.1% phosphoric acid], m.p. 213–215° C.

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

Sources & evidence

ORD record
ord-9a9ab0a8fd9a47409f6380d8f6af60a0
Source dataset
uspto-grants-2006_06
Patent number
US07064120B2

Reaction notes

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