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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 70216Generated: October 29, 2026

Hydrochloric Acid → 2-(4-(Tert-butoxycarbonyl)-2-((pyridin-3-yloxy)methyl)piperazin-1-yl)thiazole-4-carboxylic acid

https://huagongshe.com/reaction/70216

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantLithium HydroxideHCID 3939—
ReactantMethyl 2-(4-(tert-butoxycarbonyl)-2-((pyridin-3-yloxy)methyl)piperazin-1-yl)thiazole-4-carboxylateHCID 59671612—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
Solvent1,4-DioxaneHCID 31275—
Product2-(4-(Tert-butoxycarbonyl)-2-((pyridin-3-yloxy)methyl)piperazin-1-yl)thiazole-4-carboxylic acidHCID 59671467—

Reaction Steps

Lithium hydroxide (15.5 mg, 0.649 mmol) was added to a solution of methyl 2-(4-(tert-butoxycarbonyl)-2-((pyridin-3-yloxy)methyl)piperazin-1-yl)thiazole-4-carboxylate (0.282 g, 0.649 mmol) in THF (2 mL), MeOH (2 mL), and H2O (1 mL). After 5 h, 4M HCl in 1,4-dioxane (0.200 mL) was added, and the reaction mixture was concentrated under reduced pressure. The material was used without further purification. LC-MS: RT=6.35 min, [M+H]+=421.7.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822472B2
Source datasetuspto-grants-2014_09
ORD IDord-ed0a817385244572a7ce8fb1a84697dd
Source noteuspto-grants-2014_09