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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2233998Generated: October 31, 2026

Hydrochloric Acid → HCID 68582508, compound

https://huagongshe.com/reaction/2233998

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 68580109HCID 68580109—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 68582508HCID 685825085.2%

Reaction Steps

Ethyl 5-(4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}piperidin-1-yl)-1,3,4-thiadiazole-2-carboxylate (Example 219; 0.530 g, 1.2 mmol) and lithium hydroxide (0.117 g, 4.9 mmol) were stirred in dioxane (5 ml) and water (0.5 ml) and heated to 50° C. for thirty minutes. The solution was acidified (pH 4) using 1 N HCl resulting in a precipitate. The solids were collected and purified using semi-preparative HPLC to give the title compound (0.025 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07709503B2
Source datasetuspto-grants-2010_05
ORD IDord-f6d0950085ef4cf7b9d79b383c87f978
Source noteuspto-grants-2010_05