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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1482252Generated: October 26, 2026

tert-butyl (S)-5-(3-(2-((tert-butoxycarbonyl)amino)-3-oxo-3-(piperidin-1-yl)propyl)phenyl)pent-4-ynoate → tert-butyl (S)-5-(3-(2-((tert-butoxycarbonyl)amino)-3-oxo-3-(piperidin-1-yl)propyl)phenyl)pentanoate

https://huagongshe.com/reaction/1482252

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-butyl (S)-5-(3-(2-((tert-butoxycarbonyl)amino)-3-oxo-3-(piperidin-1-yl)propyl)phenyl)pent-4-ynoateHCID 89668397—
CatalystAllyl(1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene)chloropalladium(II)HCID 105144—
SolventEthyl AcetateHCID 8857—
Producttert-butyl (S)-5-(3-(2-((tert-butoxycarbonyl)amino)-3-oxo-3-(piperidin-1-yl)propyl)phenyl)pentanoateHCID 8966852297.1%

Reaction Steps

tert-Butyl (S)-5-(3-(2-((tert-butoxycarbonyl)amino)-3-oxo-3-(piperidin-1-yl)propyl)phenyl)pent-4-ynoate (Compound SP430) (4.84 g, 9.99 mmol) was dissolved in ethyl acetate (40 ml), and 10% palladium(II) on carbon (968 mg) was added under a nitrogen atmosphere. The mixture was then stirred at room temperature for 3.5 hours under a hydrogen atmosphere. After filtration through celite, the filtrate was concentrated under reduced pressure to afford the title compound (Compound SP431) (4.74 g, 97%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09409952B2
Source datasetuspto-grants-2016_08
ORD IDord-dc1dbe1f4842407dbf520112eaf2ae8f
Source noteuspto-grants-2016_08