Triethylamine → N-[4-(5H-pyrrolo[2,1-c][1,4]benzodiazepin-10(11H)-ylcarbonyl)-phenyl]2,4-dichlorobenzamide

HRID 1739953Notes

Reaction equation

HRID 1739953 reaction equation
[Cl:1][C:2]1[CH:10]=[C:9]([Cl:11])[CH:8]=[CH:7][C:3]=1[C:4](Cl)=[O:5].C(N(CC)CC)C.[NH2:19][C:20]1[CH:41]=[CH:40][C:23]([C:24]([N:26]2[C:32]3[CH:33]=[CH:34][CH:35]=[CH:36][C:31]=3[CH2:30][N:29]3[CH:37]=[CH:38][CH:39]=[C:28]3[CH2:27]2)=[O:25])=[CH:22][CH:21]=1>C(Cl)Cl.C(OCC)(=O)C>[CH:39]1[CH:38]=[CH:37][N:29]2[CH2:30][C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=3[N:26]([C:24]([C:23]3[CH:22]=[CH:21][C:20]([NH:19][C:4](=[O:5])[C:3]4[CH:7]=[CH:8][C:9]([Cl:11])=[CH:10][C:2]=4[Cl:1])=[CH:41][CH:40]=3)=[O:25])[CH2:27][C:28]=12

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 666452,4-Dichlorobenzoyl chlorideHCID 1082828010,11-dihydro-10(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]benzodiazepine

Product 1

HCID 9826254N-[4-(5H-pyrrolo[2,1-c][1,4]benzodiazepin-10(11H)-ylcarbonyl)-phenyl]2,4-dichlorobenzamideYield 53.5%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 415 mg of 2,4-dichlorobenzoyl chloride in 5 ml of methylene chloride at 0° C. is added 346 μl of triethylamine. After stirring for 3 minutes, 500 mg of 10,11-dihydro-10-(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]benzodiazepine is added. The bath is removed and the reaction mixture stirred at room temperature for 18 hours. The volatiles are concentrated in vacuo to give a residue which is dissolved in ethyl acetate, washed with water, 2N citric acid, 1M NaHCO3 and brine. The organic layer is dried with is Na2SO4, filtered and concentrated in vacuo to give a residue which is crystallized from ethyl acetate to give 420 mg of the desired product as a crystalline solid, m.p., 210-212° C.

Workup

  1. customThe bath is removed
  2. stirringthe reaction mixture stirred at room temperature for 18 hours
  3. concentrationThe volatiles are concentrated in vacuo
  4. customto give a residue which
  5. washwashed with water, 2N citric acid, 1M NaHCO3 and brine
  6. customThe organic layer is dried
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customto give a residue which
  10. customis crystallized from ethyl acetate

Sources & evidence

ORD record
ord-5e9799bb53d54c319e72bfa8313c976c
Source dataset
uspto-grants-1999_10
Patent number
US05968930

Reaction notes

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