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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 73400Generated: October 30, 2026

5-(5-chloro-1,2,4-thiadiazol-3-yl)thiophene-2-sulfonyl Chloride → 5-(5-chloro-1,2,4-thiadiazol-3-yl)-N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)thiophene-2-sulfonamide

https://huagongshe.com/reaction/73400

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-(5-chloro-1,2,4-thiadiazol-3-yl)thiophene-2-sulfonyl ChlorideHCID 2735820—
Reactant5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene-1,2-diamineHCID 59386306—
Product5-(5-chloro-1,2,4-thiadiazol-3-yl)-N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)thiophene-2-sulfonamideHCID 53492015—

Reaction Steps

According to the general procedure B, 5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene-1,2-diamine (0.182 mmol) was reacted with 5-(5-chloro-1,2,4-thiadiazol-3-yl)thiophene-2-sulfonyl chloride (0.5 mmol) to obtain 5-(5-chloro-1,2,4-thiadiazol-3-yl)-N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)thiophene-2-sulfonamide. 1H NMR (300 MHz, CDCl3)) δ 5.8 (dt, 1H), 5.95 (s, 1H), 6.95 (d, 1H), 7.4 (m, 2H), 7.6 (d, 1H), 7.8 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08829052B2
Source datasetuspto-grants-2014_09
ORD IDord-2509433da39342408fdd6a58d92ab23e
Source noteuspto-grants-2014_09