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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 242507Generated: October 31, 2026

(5-chloro-2-fluorophenyl)hydrazine → (s)-Tert-butyl 2-(1-(5-chloro-2-fluorophenyl)-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole-3-carboxamido)-3,3-dimethylbutanoate

https://huagongshe.com/reaction/242507

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(5-chloro-2-fluorophenyl)hydrazineHCID 2773732—
ReactantL-(+)-Ttert-butyl tert-leuc-inateHCID 11252445—
Reactant(s)-1-(3,4-Difluorophenyl)-n-(3,3-dimethyl-1-(methylamino)-1-oxobutan-2-yl)-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole-3-carboxamideHCID 46863093—
Product(s)-Tert-butyl 2-(1-(5-chloro-2-fluorophenyl)-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole-3-carboxamido)-3,3-dimethylbutanoateHCID 58504324—

Reaction Steps

This intermediate was prepared according to the procedure escribed for the synthesis of Compound 114 by replacing 3,4-difluorophenylhydrazine with 2-fluoro-5-chlorophenylhydrazine in step 1, and replacing tert-leucine methyl amide with tert-leucine tert-butyl ester in step 3. LC-MS (+ESI) m/z=466.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653127B2
Source datasetuspto-grants-2014_02
ORD IDord-3ddf0fdf79b141499b63c77621bd3c0e
Source noteuspto-grants-2014_02