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

HRID 1533802Notes

Reaction equation

HRID 1533802 reaction equation
[NH2:1][C:2]1[C:44]([NH2:45])=[CH:43][CH:42]=[CH:41][C:3]=1[C:4]([NH:6][C:7]1[CH:38]=[CH:37][C:10]([C:11]([N:13]([CH3:36])[C:14]2[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][C:15]=2[O:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][C:27]([N:29]2[CH2:34][CH2:33][N:32]([CH3:35])[CH2:31][CH2:30]2)=[O:28])=[O:12])=[CH:9][C:8]=1[O:39][CH3:40])=[O:5].[SH:46][CH2:47][C:48](O)=O>C(Cl)(Cl)Cl>[CH3:40][O:39][C:8]1[CH:9]=[C:10]([CH:37]=[CH:38][C:7]=1[NH:6][C:4]([C:3]1[C:2]2[N:1]=[C:48]([CH2:47][SH:46])[NH:45][C:44]=2[CH:43]=[CH:42][CH:41]=1)=[O:5])[C:11]([N:13]([CH3:36])[C:14]1[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][C:15]=1[O:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][C:27]([N:29]1[CH2:34][CH2:33][N:32]([CH3:35])[CH2:31][CH2:30]1)=[O:28])=[O:12]

Participants

4

Reactant 2

HCID 1133Thioglycolic AcidHCID 183547944-(2,3-diaminophenyl)carbonylamino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide

Product 1

HCID 183549923-methoxy-4-(2-mercaptomethyl-1H-benzimidazol-4-yl)carbonylamino-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamideYield 55%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

A solution of 4-(2,3-diaminobenzoyl)amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (100 mg) and mercaptoacetic acid (448 mg) was heated at 80° C. for 5 hours. The reaction mixture was diluted with chloroform and washed with aqueous sodium hydrogen carbonate. The extract was dried over sodium sulfate. After evaporation of the solvent, the residue was purified by silica gel column chromatography (10% methanol in chloroform) to give 3-methoxy-4-(2-mercaptomethyl-1H-benzimidazol-4-yl)carbonylamino-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (60 mg).

Workup

  1. washwashed with aqueous sodium hydrogen carbonate
  2. dry with materialThe extract was dried over sodium sulfate
  3. customAfter evaporation of the solvent
  4. customthe residue was purified by silica gel column chromatography (10% methanol in chloroform)

Sources & evidence

ORD record
ord-87a18486d5e44525a850fddc060095bc
Source dataset
uspto-grants-2001_03
Patent number
US06207693B1

Reaction notes

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