1. Flynn, E. H. 1972.Cephalosporins and Penicilins, 171New York: Academic Press. R. B. Morin, M. Gorman, inChemistry and Biology ofβ-Lactam Antibiotics, Vol. 3, p. 379, Academic Press, New York, NY, 1982
2. 379. Some novel penicillin derivatives
3. Preparation of ceph-3-em esters unaccompanied by .DELTA.3 .fwdarw. .DELTA.2 isomerization of the cephalosporin
4. A New Efficient Synthesis of Iodomethyl Methyl Ether
5. The alkylation of penicilins is accompanied by a strong exotherm. In the case of 2 and 3, the reaction mixtures were cooled to -10°