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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 335116Generated: October 29, 2026

Hydrochloric Acid → 5-bromo-3-phenoxy-N-(4-(piperidin-4-yl)thiazol-2-yl)pyridin-2-amine dihydrochloride

https://huagongshe.com/reaction/335116

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantTert-butyl 4-(2-(5-bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylateHCID 86631480—
Solvent1,4-DioxaneHCID 31275—
Product5-bromo-3-phenoxy-N-(4-(piperidin-4-yl)thiazol-2-yl)pyridin-2-amine dihydrochlorideHCID 86631482—

Reaction Steps

tert-Butyl 4-(2-(5-bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylate was dissolved in 1:1CH2Cl2:methanol and 4N HCl in dioxane was added and stirred at room temperature for 1 hour. The solvents were removed to afford the title compound. 1H NMR (d6-DMSO) δ 10.98 (bs, 1H), 8.90 (bs, 1H), 8.70 (bs, 1H), 8.23 (d, 1H), 7.45 (m, 2H), 7.40 (d, 1H), 7.22 (m, 1H), 7.12 (m, 2H), 6.76 (s, 1H), 3.31 (m, 2H), 2.98 (m, 2H), 2.89 (m, 1H), 2.10 (m, 2H), 1.79 (m, 2H). Mass spectrum (apci) m/z=431.2, 433.2 (M+H-2HCl).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883828B2
Source datasetuspto-grants-2014_11
ORD IDord-01ae13ae31bf49f5960c9831845b3eeb
Source noteuspto-grants-2014_11