Trifluoroacetic acid → HCID 178476693, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of diphenylmethyl 7β-[2-(2-aminothiazol-4-yl)-2-(Z)-(acetoxyimino)acetamido]-3-[(3-pyridyl)methylthio]-3-cephem-4-carboxylate (3.32 g, 4.83 m mol) and anisole (3.3 ml) in dichloromethane (16.6 ml) was added trifluoroacetic acid (6.6 ml) at 5° C. The mixture was stirred at 5° C. for 1.5 hours. The reaction mixture was poured into IPE. The resulting precipitates were collected by filtration, washed with IPE, and dried in vacuo to give 7β-[2-(2-aminothiazol-4-yl)-2-(Z)-(acetoxyimino)acetamido]-3-[(3-pyridyl)methylthio]-3-cephem-4-carboxylic acid bis(trifluoroacetic acid) salt (3.88 g, 5.08 m mol).

Provenance & Evidence