Water → HCID 66745843, compound

Participants

Reaction Steps

To a solution of tert-butyl N-[[4-[5-[6-(4-azidocyclohexen-1-yl)-3-(tert-butoxycarbonylamino)pyrazin-2-yl]-1,3,4-oxadiazol-2-yl]phenyl]methyl]-N-methyl-carbamate (103 mg, 0.17 mmol) in anhydrous THF (1.5 mL) was added triphenylphosphine (67 mg, 0.26 mmol) and the reaction mixture was stirred at room temperature for 1 h. Water (61 μL, 3.41 mmol) was added after 1 h, and the reaction mixture was heated at 65° C. for 3 h. The reaction mixture was allowed to cool to room temperature and was partitioned between EtOAc/aqueous brine. The layers were separated and the aqueous layer was extracted once more with EtOAc. The combined organics were dried over Na2SO4, filtered and concentrated to dryness. The crude material was purified by silica gel column chromatography using 20% MeOH in EtOAc to yield tert-butyl N-[[4-[5-[6-(4-aminocyclohexen-1-yl)-3-(tert-butoxycarbonylamino)pyrazin-2-yl]-1,3,4-oxadiazol-2-yl]phenyl]methyl]-N-methyl-carbamate (21 mg, 21%). LC/MS m/z 578.3 [M+H]+.

Provenance & Evidence