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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 242476Generated: October 26, 2026

Isobutyl chloroformate → N-((S)-1-((S)-1-amino-4-methyl-1-oxopentan-2-ylamino)-3,3-dimethyl-1-oxobutan-2-yl)-5-methyl-3-(2,4,5-trifluorophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-1-carboxamide

https://huagongshe.com/reaction/242476

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsobutyl chloroformateHCID 62365—
ReactantLeucinamideHCID 69640—
ReactantDiisopropylethylamineHCID 81531—
Reactant(S)-3,3-dimethyl-2-(5-methyl-3-(2,4,5-trifluorophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-1-carboxamido)butanoic acidHCID 46861922—
SolventDichloromethaneHCID 6344—
ProductN-((S)-1-((S)-1-amino-4-methyl-1-oxopentan-2-ylamino)-3,3-dimethyl-1-oxobutan-2-yl)-5-methyl-3-(2,4,5-trifluorophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-1-carboxamideHCID 46861923—

Reaction Steps

To a solution of compound 71 (40 mg) in DCM was added DIEA (45 uL) followed by isobutylchloroformate (26 uL). After stirring at room temperature for 30 min, leucine amide (18 mg) and DIEA (25 uL) was added and stirred for 1 h. The reaction mixture was evaporated and dissolved in MeOH, and purified with a preparative LC-MS to give compound 72. LCMS (+ESI) m/z=537.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653127B2
Source datasetuspto-grants-2014_02
ORD IDord-eda2cff38ef04079b11b8b7e41454a5d
Source noteuspto-grants-2014_02