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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269352Generated: October 29, 2026

5-(4-Chloro-phenyl)-3-iodo-7-methyl-pyrazolo[1,5-a]pyrimidine → 5-[5-(4-Chloro-phenyl)-7-methyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amide

https://huagongshe.com/reaction/269352

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-(4-Chloro-phenyl)-3-iodo-7-methyl-pyrazolo[1,5-a]pyrimidineHCID 67001322—
Reactant5-Ethynylthiophene-2-sulfonamideHCID 86043795—
Product5-[5-(4-Chloro-phenyl)-7-methyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amideHCID 67000849—

Reaction Steps

The title compound was prepared from 5-(4-chloro-phenyl)-3-iodo-7-methyl-pyrazolo[1,5-a]pyrimidine (example 292) (185 mg, 0.5 mmol) and 5-ethynyl-thiophene-2-sulfonic acid amide (example D.3) (94 mg, 0.5 mmol) according to general procedure II. Obtained as a yellow solid (94 mg, 44%). MS (ISP) 429.5 [(M+H)+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-cd8f3a8d74854642b8ad0ae67bfed18a
Source noteuspto-grants-2008_11