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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1890597Generated: October 31, 2026

Sodium Hydroxide → 5-Chloro-3-(thiazolo[4,5-c]pyridin-2-ylmethyl)-3H-[1,2,3]triazolo[4,5-b]pyridine

https://huagongshe.com/reaction/1890597

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantSodium NitriteHCID 23668193—
Reactant6-Chloro-N2-(thiazolo[4,5-c]pyridin-2-ylmethyl)pyridine-2,3-diamineHCID 86671441—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
Product5-Chloro-3-(thiazolo[4,5-c]pyridin-2-ylmethyl)-3H-[1,2,3]triazolo[4,5-b]pyridineHCID 86671442—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of NaNO2 (42.5 mg, 0.62 mmol) in H2O (0.5 mL) was added dropwise to a solution of 6-chloro-N2-(thiazolo[4,5-c]pyridin-2-ylmethyl)pyridine-2,3-diamine (90 mg, 0.31 mmol) in AcOH (1 mL) and H2O (1 mL) at 0° C. The reaction solution was stirred at 0° C. for 1 h, then basified with 30% aqueous NaOH to pH ˜9. The resulting precipitate was collected by filtration to afford the title compound. MS (m/z): 303 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08507487B2
Source datasetuspto-grants-2013_08
ORD IDord-0151cc787eba4ec28cbcaed5e40252c4
Source noteuspto-grants-2013_08