Hydrochloric Acid → 2-[N-(4-amidinophenyl)aminomethyl]benzothiazole-5-carboxylic acid-N-phenvl-N-(2-carboxyethyl)amide

HRID 50211Notes

Reaction equation

HRID 50211 reaction equation
[C:1]1([N:7]([CH2:30][CH2:31][C:32]([O:34]CC)=[O:33])[C:8]([C:10]2[CH:11]=[CH:12][C:13]3[S:17][C:16]([CH2:18][NH:19][C:20]4[CH:25]=[CH:24][C:23]([C:26](=[NH:28])[NH2:27])=[CH:22][CH:21]=4)=[N:15][C:14]=3[CH:29]=2)=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[OH-].[Na+].Cl>C(O)C.ClCCl.C(O)C>[C:1]1([N:7]([CH2:30][CH2:31][C:32]([OH:34])=[O:33])[C:8]([C:10]2[CH:11]=[CH:12][C:13]3[S:17][C:16]([CH2:18][NH:19][C:20]4[CH:25]=[CH:24][C:23]([C:26](=[NH:27])[NH2:28])=[CH:22][CH:21]=4)=[N:15][C:14]=3[CH:29]=2)=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 184123862-[N-(4-amidinophenyl)aminomethyl]benzothiazole-5-carboxylic acid-N-phenyl-N-(2-ethoxycarbonylethyl)amide

Product 1

HCID 154332162-[N-(4-amidinophenyl)aminomethyl]benzothiazole-5-carboxylic acid-N-phenvl-N-(2-carboxyethyl)amide

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 21584144Dichloromethane ethanolSolvent

Procedure

0.45 g (0.84 mmol) of 2-[N-(4-amidinophenyl)aminomethyl]benzothiazole-5-carboxylic acid-N-phenyl-N-(2-ethoxycarbonylethyl)amide were dissolved in 15 mL of ethanol, mixed with 2 mL of 2N sodium hydroxide solution, and stirred for 4 hours at room temperature. Then the mixture was acidified with 3 mL of 2N hydrochloric acid and the solvent was distilled off. The crude product obtained was taken up in 5 mL dichloromethane/ethanol (2:1) and filtered to remove the insoluble sodium chloride. After the distillation of the solvent, the desired compound was obtained as a yellow foam. Yield: 0.26 g (67% of theory), C25H23N5O3S (473.55); Rf value: 0.47 (silica gel; methanol/5% aqueous sodium chloride=6:4); mass spectrum: (M+H)+=474.

Workup

  1. distillationthe solvent was distilled off
  2. customThe crude product obtained
  3. filtrationfiltered
  4. customto remove the insoluble sodium chloride
  5. distillationAfter the distillation of the solvent

Sources & evidence

ORD record
ord-7ed778732f9a445f90543cdba1ed91a2
Source dataset
uspto-grants-2004_03
Patent number
US06710055B2

Reaction notes

Loading…