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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 79101Generated: October 26, 2026

Benzenesulfonamide, 3-amino- → 2-(2-Methylpyridin-3-yloxy)-n-(3-sulfamoylphenyl)-4-(trifluoromethyl)benzamide

https://huagongshe.com/reaction/79101

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenesulfonamide, 3-amino-HCID 7377—
ReactantTriethylamineHCID 8471—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant2-(2-methylpyridin-3-yloxy)-4-(trifluoromethyl)benzoic acid TFA saltHCID 131731884—
SolventDimethylformamideHCID 6228—
Product2-(2-Methylpyridin-3-yloxy)-n-(3-sulfamoylphenyl)-4-(trifluoromethyl)benzamideHCID 24855375—

Reaction Steps

A solution of 2-(2-methylpyridin-3-yloxy)-4-(trifluoromethyl)benzoic acid TFA salt (54 mg, 0.13 mmol) and HATU (50 mg, 0.13 mmol) in DMF (1 mL) was stirred at room temperature 3 min. To this solution was added 3-amino-benzenesulfonamide (23 mg, 0.13 mmol) and triethylamine (46 μL, 0.33 mmol). The reaction was stirred at room temperature for 16 h and purified by preparative reverse phase HPLC using 10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA) to give 2-(2-methylpyridin-3-yloxy)-N-(3-sulfamoylphenyl)-4-(trifluoromethyl)benzamide. LC/MS: m/z 452.3 (M+H)+ at 1.07 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841483B2
Source datasetuspto-grants-2014_09
ORD IDord-9921ceb924de4fe59aebfb9a00a89807
Source noteuspto-grants-2014_09