Trifluoroacetic acid → HCID 89443621, compound

Participants

Reaction Steps

A solution of tert-butyl (2-cyclohexylethyl){6-[({[(Z)-(4-methyl-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)(phenyl)methylene]amino}oxy)methyl]pyridin-2-yl}carbamate (100 mg, 0.187 mmol, 1 eq.) in dichloromethane (5 ml) was treated with trifluoroacetic acid (0.144 mL, 1.867 mmol, 10 eq.) and refluxed overnight. The reaction was quenched by addition of NaHCO3 sat. aq. and extracted with EtOAc (3×20 ml). The organics were combined, washed with aq. sat. NaCl, dried over MgSO4 and concentrated. After concentration, the residue was purified by chromatography on silica gel to give 3-[(Z)-[({6-[(2-cyclohexylethyl)amino]pyridin-2-yl}methoxy)imino](phenyl)methyl]-4-methyl-1,2,4-oxadiazol-5(4H)-one (52 mg, 63% yield).

Provenance & Evidence