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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1027100Generated: October 31, 2026

3-Ethoxycarbonyl-7-(3-fluoro-4-methylphenylamino)pyrazolo[1,5-a]pyrimidine-6-carboxylic acid → 3-Ethoxycarbonyl-7-(3-fluoro-4-methylphenylamino)-6-(6-fluoro-2h-spiro[benzofuran-3,4'-piperidine]-1'-ylcarbonyl)pyrazolo[1,5-a]pyrimidine

https://huagongshe.com/reaction/1027100

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Ethoxycarbonyl-7-(3-fluoro-4-methylphenylamino)pyrazolo[1,5-a]pyrimidine-6-carboxylic acidHCID 67540365—
Reactant6-Fluoro-2H-spiro[1-benzofuran-3,4'-piperidine] hydrochlorideHCID 67541402—
Product3-Ethoxycarbonyl-7-(3-fluoro-4-methylphenylamino)-6-(6-fluoro-2h-spiro[benzofuran-3,4'-piperidine]-1'-ylcarbonyl)pyrazolo[1,5-a]pyrimidineHCID 6754054996.1%

Reaction Steps

In the same manner as in Example 21, step 5 and using 3-ethoxycarbonyl-7-(3-fluoro-4-methylphenylamino)pyrazolo[1,5-a]pyrimidine-6-carboxylic acid (0.130 g, 0.363 mmol) obtained in step 2 and 6-fluoro-2H-spiro[benzofuran-3,4′-piperidine]hydrochloride (0.082 g, 0.399 mmol), the title compound (0.191 g, 96%) was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08729264B2
Source datasetuspto-grants-2014_05
ORD IDord-2f717f0f6c1a47d6a12f105bf2fa8223
Source noteuspto-grants-2014_05