Formic Acid → 3-methoxy-4-(2-methoxymethyl-1H-benzimidazol-4-yl)carbonylamino-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide

HRID 429635Notes

Reaction equation

HRID 429635 reaction equation
C([N:8]1[C:12]2[C:13]([C:17]([NH:19][C:20]3[CH:51]=[CH:50][C:23]([C:24]([N:26]([CH3:49])[C:27]4[CH:32]=[CH:31][C:30]([CH3:33])=[CH:29][C:28]=4[O:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][C:40]([N:42]4[CH2:47][CH2:46][N:45]([CH3:48])[CH2:44][CH2:43]4)=[O:41])=[O:25])=[CH:22][C:21]=3[O:52][CH3:53])=[O:18])=[CH:14][CH:15]=[CH:16][C:11]=2[N:10]=[C:9]1[CH2:54][O:55][CH3:56])C1C=CC=CC=1.C(O)=O>CO>[CH3:53][O:52][C:21]1[CH:22]=[C:23]([CH:50]=[CH:51][C:20]=1[NH:19][C:17]([C:13]1[C:12]2[N:8]=[C:9]([CH2:54][O:55][CH3:56])[NH:10][C:11]=2[CH:16]=[CH:15][CH:14]=1)=[O:18])[C:24]([N:26]([CH3:49])[C:27]1[CH:32]=[CH:31][C:30]([CH3:33])=[CH:29][C:28]=1[O:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][C:40]([N:42]1[CH2:47][CH2:46][N:45]([CH3:48])[CH2:44][CH2:43]1)=[O:41])=[O:25]

Participants

4

Reactant 2

HCID 284Formic AcidHCID 18354861HCID 18354861, compound

Product 1

HCID 183551013-methoxy-4-(2-methoxymethyl-1H-benzimidazol-4-yl)carbonylamino-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamideYield 27.2%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of 4-(3-benzyl-2-methoxymethyl-3H-benzimidazol-4-yl)carbonylamino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (200 mg) and 5% formic acid in methanol solution (10 ml) was refluxed for 24 hours. The reaction mixture was concentrated in vacuo and the residue was dissolved in chloroform. The solution was washed with saturated aqueous sodium bicarbonate solution and the organic layer was dried over magnesium sulfate. The solvent was evaporated in vacuo and the residue was purified by preparative thin-layer chromatography (chloroform-methanol=10:1) to give 3-methoxy-4-(2-methoxymethyl-1H-benzimidazol-4-yl)carbonylamino-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (48 mg) as a powder.

Workup

  1. temperaturewas refluxed for 24 hours
  2. concentrationThe reaction mixture was concentrated in vacuo
  3. dissolutionthe residue was dissolved in chloroform
  4. washThe solution was washed with saturated aqueous sodium bicarbonate solution
  5. dry with materialthe organic layer was dried over magnesium sulfate
  6. customThe solvent was evaporated in vacuo
  7. customthe residue was purified by preparative thin-layer chromatography (chloroform-methanol=10:1)

Sources & evidence

ORD record
ord-f1e246ceb6874a92aecf44994c375f54
Source dataset
uspto-grants-2001_11
Patent number
US06316482B1

Reaction notes

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