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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898550Generated: October 31, 2026

Pyrrolidine → 2-(1-Ethyl-1H-pyrazol-4-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-1-cyclopropyl-2-(3,3-difluoro-pyrrolidin-1-yl)-2-oxo-ethyl]-amide

https://huagongshe.com/reaction/1898550

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant(2R)-2-{[(tert-butoxy)carbonyl]amino}-3,3-dimethylbutanoic acidHCID 7005057—
Reactant(R)-2-((tert-Butoxycarbonyl)amino)-2-cyclopropylacetic acidHCID 7146275—
Reactant3,3-Difluoropyrrolidine hydrochlorideHCID 24903482—
Reactant2-cyclopropyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acidHCID 57829653—
Reactant2-(1-ethyl-1H-pyrazol-4-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[3,2-b]pyrazine-7-carboxylic acidHCID 58438544—
Product2-(1-Ethyl-1H-pyrazol-4-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-1-cyclopropyl-2-(3,3-difluoro-pyrrolidin-1-yl)-2-oxo-ethyl]-amideHCID 58438526—

Reaction Steps

Prepared according to the procedure outlined in Example 1 substituting 3,3-difluoropyrrolidine hydrochloride for pyrrolidine, Boc-D-cyclopropyl glycine for Boc-D-tert-leucine, and 2-(1-ethyl-1H-pyrazol-4-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[3,2-b]pyrazine-7-carboxylic acid for 2-cyclopropyl-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid. MS: (M+H)+=444.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518945B2
Source datasetuspto-grants-2013_08
ORD IDord-a107f72871544aaa9e61d6a59ca6b883
Source noteuspto-grants-2013_08