Acetic Anhydride → HCID 118308722, compound

Participants

Reaction Steps

To a solution of 146 mg of tert-butyl 4-(N′-hydroxycarbamimidoyl)-2,2,4-trimethyl-1,3-oxazolidine-3-carboxylate in 4 ml of dichloromethane was added 55 μl of acetic anhydride, followed by stirring at room temperature for 1 hour. The reaction mixture was concentrated under reduced pressure, and to the obtained residue were added 4 ml of DMF, followed by stirring at 110° C. for 15 hours. The reaction mixture was concentrated under reduced pressure and the obtained residue was purified by silica gel column chromatography to obtain 113 mg of tert-butyl 2,2,4-trimethyl-4-(5-methyl-1,2,4-oxadiazol-3-yl)-1,3-oxazolidine-3-carboxylate.

Provenance & Evidence