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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 444847Generated: October 30, 2026

Hydrochloric Acid → 4-Amino-2-(piperidin-3-ylamino)-1,3-thiazole-5-carbonitrile dihydrochloride

https://huagongshe.com/reaction/444847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 3-[(4-amino-5-cyano-1,3-thiazol-2-yl)amino]piperidine-1-carboxylateHCID 57911784—
Solvent1,4-DioxaneHCID 31275—
Product4-Amino-2-(piperidin-3-ylamino)-1,3-thiazole-5-carbonitrile dihydrochlorideHCID 86635022—

Reaction Steps

Analogously to the preparation of Example 38A, 240 mg (0.7 mmol) of tert-butyl 3-[(4-amino-5-cyano-1,3-thiazol-2-yl)amino]piperidine-1-carboxylate (Example 46A) and 25 ml of hydrochloric acid in dioxane (4M) gave 265 mg (57% of theory) of the product as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08476267B2
Source datasetuspto-grants-2013_07
ORD IDord-7e827d53abc94cd9ab29086450d50650
Source noteuspto-grants-2013_07