Triethylamine → N-[4-(5H-pyrrolo[2,1-c][1,4]benzodiazepin-10(11H)-ylcarbonyl)phenyl]-3-methyl-2-thiophenecarboxamide

HRID 1598152Notes

Reaction equation

HRID 1598152 reaction equation
[CH3:1][C:2]1[CH:6]=[CH:5][S:4][C:3]=1[C:7](Cl)=[O:8].C(N(CC)CC)C.[NH2:17][C:18]1[CH:39]=[CH:38][C:21]([C:22]([N:24]2[C:30]3[CH:31]=[CH:32][CH:33]=[CH:34][C:29]=3[CH2:28][N:27]3[CH:35]=[CH:36][CH:37]=[C:26]3[CH2:25]2)=[O:23])=[CH:20][CH:19]=1>C(Cl)Cl>[CH:37]1[CH:36]=[CH:35][N:27]2[CH2:28][C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=3[N:24]([C:22]([C:21]3[CH:20]=[CH:19][C:18]([NH:17][C:7]([C:3]4[S:4][CH:5]=[CH:6][C:2]=4[CH3:1])=[O:8])=[CH:39][CH:38]=3)=[O:23])[CH2:25][C:26]=12

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 27376053-Methyl-2-thenoyl ChlorideHCID 1082828010,11-dihydro-10(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]benzodiazepine

Product 1

HCID 15340667N-[4-(5H-pyrrolo[2,1-c][1,4]benzodiazepin-10(11H)-ylcarbonyl)phenyl]-3-methyl-2-thiophenecarboxamideYield 113.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 318 mg of 3-methyl-2-thiophenecarbonyl chloride in 5 ml of methylene chloride at 0° C. is added 346 μl of triethylamine. After stirring for 3 minutes, 500 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 18 hours. The volatiles are concentrated in vacuo to give a residue which crystallizes from ethyl acetate to afford 800 mg of solid. The solid is dissolved in methylene chloride washed with water, 2N citric acid, 1M NaHCO3 and brine. The organic layer is filtered through hydrous magnesium silicate, dried with Na2SO4 and concentrated in vacuo to give a residue which crystallizes from ethyl acetate to afford 400 mg of the desired product as a white solid, m.p. 232°-235° 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. customcrystallizes from ethyl acetate

Sources & evidence

ORD record
ord-255a2fd6e2014471b2895b23fc2a55b7
Source dataset
uspto-grants-1998_04
Patent number
US05736540

Reaction notes

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