Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 36860Generated: October 30, 2026

Hydrochloric Acid → 2-Amino-4-methyl-5-[2-(4-phenylpiperidinyl)ethyl-thio]thiazole hydrochloride

https://huagongshe.com/reaction/36860

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium CarbonateHCID 11430—
Reactant5-Bromo-4-methyl-1,3-thiazol-2-amineHCID 12954373—
Reactant2-(4-Phenyl-1-piperidinyl)ethyl mercaptanHCID 19936412—
SolventMethanolHCID 887—
SolventDimethylformamideHCID 6228—
Product2-Amino-4-methyl-5-[2-(4-phenylpiperidinyl)ethyl-thio]thiazole hydrochlorideHCID 19936423—

Reaction Steps

9.65 g of 2-amino-5-bromo-4-methylthiazole, 11.1 g of 2-(4-phenyl-1-piperidinyl)ethyl mercaptan and 20.7 g of potassium carbonate in 50 ml of dimethylformamide were stirred at 80° C. for 30 minutes. The mixture was poured into ice-water and extracted with methylene chloride, and the organic phase was washed with water, dried and concentrated. The residue was purified by chromatography (SiO2 ; CH2Cl2, CH3OH (0-20%)). The hydrochloride was prepared by dissolving the free base in methanol and adding ethereal HCl.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05418235
Source datasetuspto-grants-1995_05
ORD IDord-e58a2de72e7e48be8d5f536a83cc4485
Source noteuspto-grants-1995_05