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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 15767Generated: October 25, 2026

Pyrazole → cis-4,6-Diethyl-5-(4-fluorophenylsulfonyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine

https://huagongshe.com/reaction/15767

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
Reactant4-Fluorobenzenesulfonyl chlorideHCID 9588—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantDimethylformamide dimethyl acetalHCID 78373—
Reactantcis-7,9-Diethyl-1,4-dioxa-8-azaspiro[4.5]decaneHCID 59342374—
Reactant2,6-Diethyl-1-(4-fluorophenylsulfonyl)piperidin-4-oneHCID 68501988—
Productcis-4,6-Diethyl-5-(4-fluorophenylsulfonyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridineHCID 68499313—

Reaction Steps

Prepared by treatment of 2,6-diethyl-1-(4-fluorophenylsulfonyl)piperidin-4-one, which was prepared by sulfonylation of compound 126 using 4-fluorobenzenesulfonyl chloride followed by deprotection as shown in Example 17, with DMF-DMA followed by pyrazole formation using hydrazine hydrate as shown in Example 15.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732609B2
Source datasetuspto-grants-2010_06
ORD IDord-2b900573df6e4375b11784a30c453654
Source noteuspto-grants-2010_06