Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898078Generated: October 31, 2026

Diisopropylethylamine → 5-Chloro-3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyridine-2-carboxylic acid (2,4-difluoro-phenyl)-methyl-amide

https://huagongshe.com/reaction/1898078

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantBenzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 151348—
Reactant2,4-difluoro-N-methylanilineHCID 2737023—
Reactant5-Chloro-3-(4-chloro-3-trifluoromethyl benzenesulfonylamino)-pyridine-2-carboxylic acidHCID 57942077—
Product5-Chloro-3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyridine-2-carboxylic acid (2,4-difluoro-phenyl)-methyl-amideHCID 57942151—

Reaction Steps

5-Chloro-3-(4-chloro-3-(trifluoromethyl)phenylsulfonamido)picolinic acid (100 mg, 0.24 mmol), (2,4-difluoro-phenyl)-methyl-amine (103 mg, 0.72 mmol), BOP (137 mg, 0.31 mmol), DIEA (265 L, 1.44 mmol) were reacted according to the procedure D to provide the title compound. HPLC purification (20→90% gradient of MeCN-water) provided 5-chloro-3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyridine-2-carboxylic acid (2,4-difluoro-phenyl)-methyl-amide: MS m/z: (M+H) 541.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08519135B2
Source datasetuspto-grants-2013_08
ORD IDord-a4371f4714244fda89df863cf34a24c1
Source noteuspto-grants-2013_08