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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1867899Generated: November 4, 2026

N'-(5-bromo-4-(4-chlorophenyl)pyridin-2-yl)-2-(2-methyl-6-(trifluoromethyl)pyridin-3-yl)acetohydrazide → 6-Bromo-7-(4-chlorophenyl)-3-((2-methyl-6-(trifluoromethyl)pyridin-3-yl)methyl)-[1,2,4]triazolo[4,3-a]pyridine

https://huagongshe.com/reaction/1867899

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN'-(5-bromo-4-(4-chlorophenyl)pyridin-2-yl)-2-(2-methyl-6-(trifluoromethyl)pyridin-3-yl)acetohydrazideHCID 57979751—
Reactant6-Bromo-7-(4-chlorophenyl)-3-((6-(trifluoromethyl)pyridin-3-yl)methyl)-[1,2,4]triazolo[4,3-a]pyridineHCID 57979755—
SolventAcetic AcidHCID 176—
Solvent(Trifluoromethyl)benzeneHCID 7368—
Product6-Bromo-7-(4-chlorophenyl)-3-((2-methyl-6-(trifluoromethyl)pyridin-3-yl)methyl)-[1,2,4]triazolo[4,3-a]pyridineHCID 5797974563.3%

Reaction Steps

The title compound (61 mg, 60%) as a white powder was prepared from N′-(5-bromo-4-(4-chlorophenyl)pyridin-2-yl)-2-(2-methyl-6-(trifluoromethyl)pyridin-3-yl)acetohydrazide (100 mg, 0.20 mmol) in glacial acetic acid (0.6 mL) and (trifluoromethyl)benzene (1.8 mL) by the procedures analogous to those described for 6-bromo-7-(4-chlorophenyl)-3-((6-(trifluoromethyl)pyridin-3-yl)methyl)-[1,2,4]triazolo[4,3-a]pyridine (Example 56D). LC/MS (method B): retention time=1.83 min, [M+H]+=481.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07632837B2
Source datasetuspto-grants-2009_12
ORD IDord-d1ade12f648541bca48b65edd63c97d7
Source noteuspto-grants-2009_12