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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 900920Generated: October 30, 2026

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

https://huagongshe.com/reaction/900920

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Amino-5-chloro-thiophene-2-sulfonic acid (2-hydroxy-1-hydroxymethyl-1-methyl-ethyl)-amideHCID 67218795—
Reactant7-Trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acidHCID 86607112—
Product7-Trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid [2-chloro-5-(2-hydroxy-1-hydroxymethyl-1-methyl-ethylsulfamoyl)-thiophen-3-yl]-amideHCID 11997607—

Reaction Steps

The title compound was prepared from 7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.1) and 4-amino-5-chloro-thiophene-2-sulfonic acid (2-hydroxy-1-hydroxymethyl-1-methyl-ethyl)-amide (example B.7) according to general procedure II. Yellow solid. MS (ISP) 656.0 [(M−H)−]; mp 201° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07361659B2
Source datasetuspto-grants-2008_04
ORD IDord-80e2a40db7c649b8a6b5e9a986ec9d87
Source noteuspto-grants-2008_04