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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2244428Generated: November 1, 2026

Potassium Hydroxide → HCID 68405890, compound

https://huagongshe.com/reaction/2244428

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 68407249HCID 68407249—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 68405890HCID 6840589051.1%

Reaction Conditions

Temperature55 °C

Reaction Steps

A solution of 2-(2-methoxy-ethyl)-5-(pyridin-3-ylamino)-thiazole-4-carboxylic acid ethyl ester (0.17 g, 0.56 mmol) in methanol (1.00 ml) was treated with a 2.55 N solution of KOH in water (0.66 ml). The mixture was stirred at 55° C. for 40 min, then the volatiles were evaporated. The residue was redissolved in water (1.30 ml) and acidified to pH 3 with 1N HCl. Filtration and drying under vacuum afforded 2-(2-methoxy-ethyl)-5-(pyridin-3-ylamino)-thiazole-4-carboxylic acid (0.08 g, 50%), MS (ISP): m/e=278.1 (M−H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07678815B2
Source datasetuspto-grants-2010_03
ORD IDord-4ffa947ecb25411fa22e531ea9e50d7a
Source noteuspto-grants-2010_03