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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1053623Generated: November 3, 2026

Pyridine → HCID 178449817, compound

https://huagongshe.com/reaction/1053623

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant(R)-2-((tert-Butoxycarbonyl)amino)-2-methylbutanoic acidHCID 14284791—
Reactant4-chloro-N-(cyclobutylmethyl)-N-(2-fluoro-4-hydroxybenzyl)-1H-pyrrole-2-carboxamideHCID 90102322—
SolventEthyl AcetateHCID 8857—
ProductHCID 178449817HCID 1784498170%

Reaction Steps

To a solution of 4-chloro-N-(cyclobutylmethyl)-N-(2-fluoro-4-hydroxybenzyl)-1H-pyrrole-2-carboxamide (0.040 g, 0.118 mmol) in 3 mL ethyl acetate was added Boc-iso-Valine (0.026 g, 0.118 mmol), DCC (0.037 g, 0.178 mmol) and pyridine 0.5 mL. The reaction mixture was added at r.t. for overnight. After removal of all the solvent, the residue was purified by chromatography. (0-30% methanol/DCM) (S)-4-((3-chloro-N-(cyclobutylmethyl)-1H-pyrazole-5-carboxamido)methyl)-3-fluorophenyl 2-(Boc-amino)-2-methylbutanoate was obtained (0.030 g, 0.056 mmol, 47% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09394257B2
Source datasetuspto-grants-2016_07
ORD IDord-32d28061defe445d994651e37e6336f0
Source noteuspto-grants-2016_07