1
Rene Heymes, Andre Lutz: 3-Acetoxymethyl-7-(iminoacetamido)-cephalosporanic acid derivatives. Roussel Uclaf, Hammond & Littell, May 1, 1979: US04152432 (72 worldwide citation)

Compounds of the formula ##STR1## wherein R is selected from the group consisting of hydrogen and groups easily removable by acid hydrolysis or hydrogenolysis, R' is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, alkenyl and alkynyl of 2 to 4 carbon atoms and groups ea ...


2
Rene Heymes, Andre Lutz: 3-Acetoxymethyl-7-(iminoacetamido)-cephalosporanic acid derivatives. Roussel Uclaf, Hammond & Littell Weissenberger and Muserlian, April 1, 1980: US04196205 (8 worldwide citation)

Compounds of the formula ##STR1## wherein R is hydrogen, R' is selected from the group consisting of alkenyl and alkynyl of 2 to 4 carbon atoms, A is selected from the group consisting of hydrogen, alkali metal and equivalents of an alkaline earth metal or magnesium and an organic amine base and the ...


3
Rene Heyles, Andre Lutz: Novel 3-acetoxymethyl-7-(iminoacetamido)-cephalosporanic acid derivatives. Roussell Uclaf, Hammond & Littell Weissenberger and Muserlian, March 8, 1983: US04376203 (7 worldwide citation)

Compounds of the formula ##STR1## wherein R is selected from the group consisting of hydrogen and groups easily removable by acid hydrolysis or hydrogenolysis, R' is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, alkenyl and alkynyl of 2 to 4 carbon atoms and groups ea ...


4
Rene Heymes, Andre Lutz: Novel 3-acetoxymethyl-7-(iminoacetamido)-cephalosporanic acid derivatives. Roussel Uclaf, Bierman and Muserlian, January 29, 1991: US04988816 (1 worldwide citation)

Compounds of the formula ##STR1## wherein R is selected from the group consisting of hydrogen and groups easily removable by acid hydrolysis of hydrogenolysis, R' is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, alkenyl and alkynyl of 2 to 4 carbon atoms and groups ea ...



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