Hydrochloric Acid → HCID 178492693, compound

HRID 1533756Notes

Reaction equation

HRID 1533756 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].Cl.[C:47]([N:49]=[C:50]([NH2:52])[NH2:51])#N.C(=O)([O-])O.[Na+]>O>[NH:49]([C:47]1[NH:1][C:2]2[C:3]([C:4]([NH:6][C:7]3[CH:38]=[CH:37][C:10]([C:11]([N:13]([CH3:36])[C:14]4[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][C:15]=4[O:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][C:27]([N:29]4[CH2:34][CH2:33][N:32]([CH3:35])[CH2:31][CH2:30]4)=[O:28])=[O:12])=[CH:9][C:8]=3[O:39][CH3:40])=[O:5])=[CH:41][CH:42]=[CH:43][C:44]=2[N:45]=1)[C:50]([NH2:52])=[NH:51]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 10005DicyandiamideHCID 516892Sodium BicarbonateHCID 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 178492693HCID 178492693, compoundYield 45.1%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a suspension of 4-(2,3-diaminobenzoyl)amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (200 mg) in water (5 ml) was added 1 N hydrochloric acid (1.3 ml) and then dicyandiamide (545 mg) was added to the stirred reaction mixture. The solution was heated under reflux for 24 hours. After cooling, aqueous sodium hydrogen carbonate was added to the mixture and extracted with ethyl acetate. The extract was washed with brine and dried over sodium sulfate. After evaporation of the solvent, the residue was purified by silica gel column chromatography (SiO2, 30 g, 15% methanol in chloroform) to give 4-[2-guanidinobenzimidazol-4-yl]carbonylamino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (100 mg) as yellow amorphous.

Workup

  1. temperatureThe solution was heated
  2. temperatureunder reflux for 24 hours
  3. temperatureAfter cooling
  4. extractionextracted with ethyl acetate
  5. washThe extract was washed with brine
  6. dry with materialdried over sodium sulfate
  7. customAfter evaporation of the solvent
  8. customthe residue was purified by silica gel column chromatography (SiO2, 30 g, 15% methanol in chloroform)

Sources & evidence

ORD record
ord-1c1b40fbaa83433881491c846664554c
Source dataset
uspto-grants-2001_03
Patent number
US06207693B1

Reaction notes

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