(Pivaloyloxy)methyl (Pom) 6α-fluoropenicillanate (2) was prepared in 15% yield from the readily available (pivaloyloxy)methyl 6-diazopenicillanate (1) and pyridinium poly(hydrogen fluoride). Its structure was established by 1H, 13C, and 19F n.m.r. spectroscopy and mass spectrometry. A new synthesis of Porm 6β-aminopenicillanate is described.
E. L. Setti and O. A. Mascaretti, J. Chem. Soc., Perkin Trans. 1, 1988, 2059 DOI: 10.1039/P19880002059
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