Georgetown University

Abdolhossen Talebian

Philip S Schein

Dianna C Green

Charles F Hammer

Robert R Clarke

Alem Ghiorghis

Reinhard Bredehorst

Carl-Wilhelm Vogel

The invention relates to certain derivatives of mitomycins A and C and the use thereof to treat bacterial infections and to supress the growth of cancer cells. The invention also relates to processes for the preparation of the mitomycin derivatives of the invention.

Mitomycin derivatives having reduced bone marrow toxicity, processes for

Compounds of the formula: ##STR1## wherein each of R.sub.1 and R.sub.2 is independently selected from the group consisting of halogen, hydroxy, or mono carboxylic acid or R.sub.1 and R.sub.2 together is a multifunctional carboxylic acid residue which forms a ring with the platinum atom through two oxygens of said multifunctional carboxylic acid; R.sub.3 is a deoxy mono or disaccharide or a derivative thereof; and R.sub.4 is selected from the group consisting of hydrogen, C.sub.1-4 -alkyl, phenyl, benzyl, substituted phenyl or substituted benzyl, wherein substituents are selected from the group consisting of halogen, nitro, C.sub.1-2 -alkoxy, carboxy, carbony ester or phenyl or a pharmaceutically acceptable salt thereof are disclosed. Compositions containing these compounds and methods using these compounds are also discussed.

Platinum compounds suitable for use as pharmaceuticals

Platinum compounds useful in the treatment of cancer are disclosed. Compositions containing these compounds and methods of using the same are also discussed. Compounds having the formula ##STR1## wherein n is 0 or 1 and when n is 1 R.sub.1 is H or C.sub.1 -C.sub.4 alkyl, R is non-substituted higher alkyl or mono or disaccharide or a derivative of a mono or disaccharide,

Platinum pharmaceutical agents

Platinum compounds of the formulae: ##STR1## are disclosed. Compositions containing these compounds and methods of using the same in the treatment of tumors are also discussed.

Platinum pharmaceuticals

Platinum compounds useful in the treatment of cancer are disclosed. Compositions containing these compounds and methods of using the same are also discussed. The compound have the formula: ##STR1## wherein n is 0 or 1, R.sub.1 is selected from the group consisting of hydrogen, a mono or disaccharide or a derivative thereof linked to the nitrogen atom by a --NHCO-amide moiety, an --NHCS-- thioamide moeity or a --CO-- carbonylmoiety, R' is selected from the group consisting of hydrogen and C.sub.1-4 alkyl, and R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen, C.sub.1-4 alkyl or R.sub.2 and R.sub.3 or R.sub.2 and R.sub.3 together are linked to adjacent carbon atoms on a four, five or six membered ring structure, or R.sub.2 and R.sub.3 together form a fused or bicyclic ring with adjacent carbon atoms; with the proviso that R' and R.sub.1 cannot both be hydrogen when n=o, or a pharmaceutically acceptable salt thereof.

This invention provides for a cephalosporin immobilized on a solid phase support comprising a beta-lactamase releasable, detectably labeled substituent at the 3-position thereof. This invention also provides for an assay for detecting the presence of beta-lactamase enzyme in a sample comprising:

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Herndon, VA, United States of America

Abdolhossen Talebian