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

HRID 1459470Notes

Reaction equation

HRID 1459470 reaction equation
[Cl:1][C:2]1[CH:10]=[CH:9][C:8]([Cl:11])=[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]=[C:8]([Cl:11])[CH:9]=[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 179452,5-Dichlorobenzoyl chlorideHCID 1082828010,11-dihydro-10(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]benzodiazepine

Product 1

HCID 21837107N-[4-(5H-pyrrolo[2,1-c][1,4]benzodiazepin-10(11H)-ylcarbonyl)phenyl]-2,5-dichlorobenzamideYield 35%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 414.5 mg of 2,5-dichlorobenzoyl chloride in 5 ml of methylene chloride is added 276 μl of triethylamine. After stirring at 0° C. for 3 minutes 400 mg of the 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 3 hours. The volatiles are concentrated in vacuo to give a residue which is dissolved in ethyl acetate and washed with water, 2N citric acid, 1M NaHCO and brine. The organic layer is dried with Na2 SO4 and concentrated in vacuo to a residue which is purified by thick layer chromatography by elution with 1:1 ethyl acetate-hexanes to give a residue. The residue is crystallized from ethyl acetate to give 220 mg of the desired product as white crystals, m.p. 218°-220° C.

Workup

  1. additionis added
  2. customThe bath is removed
  3. concentrationThe volatiles are concentrated in vacuo
  4. customto give a residue which
  5. washwashed with water, 2N citric acid, 1M NaHCO and brine
  6. customThe organic layer is dried with Na2 SO4
  7. concentrationconcentrated in vacuo to a residue which
  8. customis purified by thick layer chromatography by elution with 1:1 ethyl acetate-hexanes
  9. customto give a residue
  10. customThe residue is crystallized from ethyl acetate

Sources & evidence

ORD record
ord-0a2be8dd3e2945e6b8947afff504ed4b
Source dataset
uspto-grants-1998_12
Patent number
US05854237

Reaction notes

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