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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 900938Generated: November 1, 2026

4-Amino-5-chloro-thiophene-2-sulfonic acid (2-hydroxy-ethyl)-amide → 5-(3-Ethoxy-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid [2-chloro-5-(2-hydroxy-ethylsulfamoyl)-thiophen-3-yl]-amide

https://huagongshe.com/reaction/900938

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Amino-5-chloro-thiophene-2-sulfonic acid (2-hydroxy-ethyl)-amideHCID 67218384—
Reactant5-(3-Ethoxy-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic acidHCID 86607113—
Product5-(3-Ethoxy-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid [2-chloro-5-(2-hydroxy-ethylsulfamoyl)-thiophen-3-yl]-amideHCID 11997757—

Reaction Steps

The title compound was prepared from 5-(3-ethoxy-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.10) and 4-amino-5-chloro-thiophene-2-sulfonic acid (2-hydroxy-ethyl)-amide (example B.6) according to general procedure II. Light yellow solid. MS (ISP) 656.0 [(M−H)−]; mp 250° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07361659B2
Source datasetuspto-grants-2008_04
ORD IDord-868e09704e5b40c6bb31004512dde2b0
Source noteuspto-grants-2008_04