HCID 67971799, compound → HCID 67035111, compound

Participants

Reaction Steps

A solution of (R)-3-{allyl-[(R)-2-(3-chloro-5-fluoro-phenylamino)-pent-4-enoyl]-amino}-piperidine-1-carboxylic acid tert-butyl ester (0.65 g, 1.4 mmol) in DCM (50 mL) was degassed and purged with argon. To the solution was added Grubb's 2nd generation catalyst (0.12 g, 0.13 mmol) and the mixture was refluxed for 90 minutes. After the solution was cooled to rt, the solvent was removed under reduced pressure to afford a solid which was dissolved in EtOAc. The organic phase was washed with brine, a solution of NaHCO3, dried (MgSO4), filtered and concentrated in vacuo to afford a residue which was purified by silica gel chromatography (gradient hexanes:EtOAc 0-70%). LCMS, m/z 381.9 [M-tBu]+.

Provenance & Evidence