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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 15766Generated: October 25, 2026

Pyrazole → cis-4,6-Diethyl-5-(pyridin-2-ylsulfonyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine

https://huagongshe.com/reaction/15766

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantDimethylformamide dimethyl acetalHCID 78373—
ReactantPyridine-2-sulfonyl chloride hydrochlorideHCID 13791306—
Reactantcis-7,9-Diethyl-1,4-dioxa-8-azaspiro[4.5]decaneHCID 59342374—
ReactantHCID 68501382HCID 68501382—
Productcis-4,6-Diethyl-5-(pyridin-2-ylsulfonyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridineHCID 68495820—

Reaction Steps

Prepared by treatment of 2,6-diethyl-1-(pyridin-2-ylsulfonyl)piperidin-4-one, which was prepared by sulfonylation of compound 126 using pyridine-2-sulfonyl chloride hydrochloride 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-d6e25c829d9240aa83bcc02a7ca1062c
Source noteuspto-grants-2010_06