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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269162Generated: October 29, 2026

5-Bromo-2-thiophenesulfonamide → 5-[7-Cyclopropyl-5-(3,4-dichloro-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amide

https://huagongshe.com/reaction/269162

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-2-thiophenesulfonamideHCID 1241304—
Reactant7-Cyclopropyl-5-(3,4-dichloro-phenyl)-3-ethynyl-pyrazolo[1,5-a]pyrimidineHCID 86608050—
Product5-[7-Cyclopropyl-5-(3,4-dichloro-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amideHCID 67000720—

Reaction Steps

The title compound was prepared from 7-cyclopropyl-5-(3,4-dichloro-phenyl)-3-ethynyl-pyrazolo[1,5-a]pyrimidine (Example C.8) (82 mg, 0.25 mmol) and 5-bromo-thiophene-2-sulfonic acid amide (61 mg, 0.25 mmol) according to general procedure II. Obtained as a yellow solid (35 mg, 28%). MS (ISP) 489.3 [(M+H)+]; mp 213-214° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-1e34deeb46e8496f942057b1230c7fc3
Source noteuspto-grants-2008_11