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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1027105Generated: October 30, 2026

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

https://huagongshe.com/reaction/1027105

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Ethoxycarbonyl-7-(4-methylphenylamino)pyrazolo[1,5-a]pyrimidine-6-carboxylic acidHCID 67540518—
Reactant6-Fluoro-2H-spiro[1-benzofuran-3,4'-piperidine] hydrochlorideHCID 67541402—
Product3-Ethoxycarbonyl-6-(6-fluoro-2h-spiro[benzofuran-3,4'-piperidine]-1'-ylcarbonyl)-7-(4-methylphenylamino)pyrazolo[1,5-a]pyrimidineHCID 6754077189.1%

Reaction Steps

In the same manner as in Example 21, step 5 and using 3-ethoxycarbonyl-7-(4-methylphenylamino)pyrazolo[1,5-a]pyrimidine-6-carboxylic acid (0.060 g, 0.176 mmol) obtained in step 2 and 6-fluoro-2H-spiro[benzofuran-3,4′-piperidine]hydrochloride (0.040 mg, 0.194 mmol), the title compound (0.083 g, 89%) was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08729264B2
Source datasetuspto-grants-2014_05
ORD IDord-3d93b060f0a54e41a26655a194f5d039
Source noteuspto-grants-2014_05