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

HRID 1739905Notes

Reaction equation

HRID 1739905 reaction equation
[NH2:1][C:2]1[CH:23]=[CH:22][C:5]([C:6]([N:8]2[C:14]3[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=3[CH2:12][N:11]3[CH:19]=[CH:20][CH:21]=[C:10]3[CH2:9]2)=[O:7])=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH3:31][C:32]1[CH:40]=[CH:39][C:38]([F:41])=[CH:37][C:33]=1[C:34](Cl)=[O:35]>C(Cl)Cl>[CH:21]1[CH:20]=[CH:19][N:11]2[CH2:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[N:8]([C:6]([C:5]3[CH:22]=[CH:23][C:2]([NH:1][C:34](=[O:35])[C:33]4[CH:37]=[C:38]([F:41])[CH:39]=[CH:40][C:32]=4[CH3:31])=[CH:3][CH:4]=3)=[O:7])[CH2:9][C:10]=12

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 27373835-Fluoro-2-methylbenzoyl chlorideHCID 1082828010,11-dihydro-10(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]benzodiazepine

Product 1

HCID 10003306N-[4-(5H-Pyrrolo[2,1-c][1,4]benzodiazepin-10(11H)ylcarbonyl)phenyl]-5-fluoro-2-methylbenzamideYield 40.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Conditions

Temperature
0 °C

Procedure

To a stirred solution of 500 mg of 10,11-dihydro-10-(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]-benzodiazepine in 3 ml of methylene chloride, cooled to 0° C., under argon, is added 346 μl of triethylamine followed by the addition of 340 mg of 2-methyl-5-fluorobenzoyl chloride in 2 ml of methylene chloride. The cooling bath is removed and stirring continued for 18 hours. After cooling to 0° C., an additional 342 mg of 2-methyl-5-fluorobenzoyl chloride in 2 ml of methylene chloride is added. The cooling bath is removed and stirring continued for 18 hours. The volatiles are removed in vacuo to a residue which is dissolved in 50 ml of methylene chloride and washed with 20 ml each of water, 2 N citric acid, 1 M sodium bicarbonate and brine. The organic layer is dried over Na2SO4 and passed through a pad of hydrous magnesium silicate. The filtrate is evaporated in vacuo to a residue which is crystallized from ethyl acetatehexane to give 295 mg of the desired product as a white solid, m.p. 170-180° C.

Workup

  1. customThe cooling bath is removed
  2. additionan additional 342 mg of 2-methyl-5-fluorobenzoyl chloride in 2 ml of methylene chloride is added
  3. customThe cooling bath is removed
  4. stirringstirring
  5. waitcontinued for 18 hours
  6. customThe volatiles are removed in vacuo to a residue which
  7. dissolutionis dissolved in 50 ml of methylene chloride
  8. washwashed with 20 ml each of water, 2 N citric acid, 1 M sodium bicarbonate and brine
  9. dry with materialThe organic layer is dried over Na2SO4
  10. customThe filtrate is evaporated in vacuo to a residue which
  11. customis crystallized from ethyl acetatehexane

Sources & evidence

ORD record
ord-210294acbab54886a02c1fb538c28234
Source dataset
uspto-grants-1999_10
Patent number
US05968937

Reaction notes

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