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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 50214Generated: October 27, 2026

Hydrochloric Acid → 2-[N-(4-amidinophenyl)aminomethyl]benzothiazol-5-yl-carboxylic acid-N-(2-pyridyl)-N-(ethoxycarbonylmethyl)amide dihydrochloride

https://huagongshe.com/reaction/50214

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantAmmonium CarbonateHCID 517111—
Reactant2-[N-(4-cyanophenyl)aminomethyl]benzothiazol-5-yl-carboxylic acid-N-(2-pyridyl)-N-(ethoxycarbonylmethyl)amideHCID 18412684—
CatalystAcetic AcidHCID 176—
SolventDichloromethane ethanolHCID 21584144—
Product2-[N-(4-amidinophenyl)aminomethyl]benzothiazol-5-yl-carboxylic acid-N-(2-pyridyl)-N-(ethoxycarbonylmethyl)amide dihydrochlorideHCID 1841244568%

Reaction Steps

Prepared analogously to Example 9 from 2-[N-(4-cyanophenyl)aminomethyl]benzothiazol-5-yl-carboxylic acid-N-(2-pyridyl)-N-(ethoxycarbonylmethyl)amide, ethanolic hydrochloric acid, ethanol, and ammonium carbonate. Yield: 68% of theory, C25H24N6O3S (488.57); Rf value: 0.14 (silica gel; methylene chloride/ethanol=4:1+a few drops of acetic acid); EKA mass spectrum: (M+H)+=489.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06710055B2
Source datasetuspto-grants-2004_03
ORD IDord-c718b0a3ffde408f9746283f2e89b3da
Source noteuspto-grants-2004_03