Hexyl chloroformate → Dabigatran Etexilate

HRID 50318Notes

Reaction equation

HRID 50318 reaction equation
Cl.[N:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[N:8]([CH2:32][CH2:33][C:34]([O:36][CH2:37][CH3:38])=[O:35])[C:9]([C:11]1[CH:31]=[CH:30][C:14]2[N:15]([CH3:29])[C:16]([CH2:18][NH:19][C:20]3[CH:25]=[CH:24][C:23]([C:26](=[NH:28])[NH2:27])=[CH:22][CH:21]=3)=[N:17][C:13]=2[CH:12]=1)=[O:10].Cl[C:40]([O:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH3:48])=[O:41]>ClCCl.CO>[N:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[N:8]([CH2:32][CH2:33][C:34]([O:36][CH2:37][CH3:38])=[O:35])[C:9]([C:11]1[CH:31]=[CH:30][C:14]2[N:15]([CH3:29])[C:16]([CH2:18][NH:19][C:20]3[CH:25]=[CH:24][C:23]([C:26](=[NH:27])[NH:28][C:40]([O:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH3:48])=[O:41])=[CH:22][CH:21]=3)=[N:17][C:13]=2[CH:12]=1)=[O:10]

Participants

4

Reactant 2

HCID 22466Hexyl chloroformateHCID 18412337Ethyl 3-(2-(((4-carbamimidoylphenyl)amino)methyl)-1-methyl-N-(pyridin-2-yl)-1H-benzo(d)imidazole-5-carboxamido)propanoate hydrochloride

Product 1

HCID 135565674Dabigatran EtexilateYield 51%

Reagents, catalysts & solvents 1

HCID 21226129Dichloromethane methanolSolvent

Procedure

Prepared analogously to Example 90 from 1-methyl-2-[N-(4-amidinophenyl)aminomethyl]benzimidazol-5-yl-carboxylic acid-N-(2-pyridyl)-N-(2-ethoxycarbonylethyl)amide hydrochloride and n-hexyl chloroformate. Yield: 51% of theory, C34H41N7O5 (627.8); Rf value: 0.53 (silica gel; dichloromethane/methanol=9:1); EKA mass spectrum: (M+H)+=628; (M+H+Na)++=325.7; (M+2H)++=314.7.

Sources & evidence

ORD record
ord-6c606f1e0acb49d082644cf456564974
Source dataset
uspto-grants-2004_03
Patent number
US06710055B2

Reaction notes

Loading…