A. Crugnola

“4,7-lactams”, intermediates for penems synthesis. I. skeletal conversion of penicillanic acid to (+)-2,2,5,5-tetramethyl-9-oxo-3-oxa-6-thia-azabicyclo[5,2,01,7]nonane

A. Longo, P. Lombardi, A. Crugnola, 1981 .

Cephalosporins. V. Synthesis and in vitro activity of some 7-[2-methoxyimino-(substituted thio)alkanoyl]amino cephalosporanic acid derivatives.

G. Nannini, A. Bedeschi, E. Perrone, 1982, The Journal of antibiotics.

Synthesis and Configuration of Some New Bicyclic 3-Arylidene- and 3- Heteroarylidene-2-oxindoles.

S. Fustinoni, A. Longo, M. Brasca, 1995 .