Novel chemical compounds are provided which selectively inhibit the metabolism of dipeptidase (E.C.3.4.13.11) and therefore are useful in combination with antibacterial products. These chemical compounds are z-2-acylamino-3-monosubstituted propenoates.
Combination of thienamycin-type antibiotics with dipeptidase inhibitors
申请人:Merck & Co., Inc.
公开号:US04539208A1
公开(公告)日:1985-09-03
A novel antibacterial drug combination is provided, one component being a fused ring .beta.-lactam, such as thienamycin and its semi-synthetic derivatives, and the other component is a dipeptidase (E.C. 3.4.13.11) inhibitor. The dual-component combination is formulated so that 1 to 3 parts by weight of the .beta.-lactam compound are employed for 30 to 1 parts by weight of the inhibitor compound.
Antibacterial compositions comprising a beta-lactam-type compound and a 3-substituted propenoate
申请人:Merck & Co., Inc.
公开号:EP0028778A1
公开(公告)日:1981-05-20
An antibacterial composition comprising (a) cephaloridine and a 3-substituted propenoate of either of the formula
wherein e.g. R2 and R3 are hydrocarbon radicals; a terminal hydrogen in R3 can be replaced by several groups; R' is hydrogen or C1-C6 alkyl or dialkylaminoalkyl, n is 3 to 5 and Y is heterocyclic or phenyl optionally substituted with hydroxyl, oxo, carboxyl, or methyl or (b) thienamycin, N-guanyl or N-formimidoyl thienamycin and a compound of formula II. The propenoate compounds prevent nephrotoxicity of the antibiotics. The antibiotic to propenoate weight ratio is from about 1 to 0.1-3.
Combination of 2-substituted penems with dipeptidase inhibitors
申请人:Merck & Co., Inc.
公开号:EP0072014A1
公开(公告)日:1983-02-16
A novel antibacterial drup combination is provided, one component being a 2-substituted penem having the structure
wherein R is -R' or -SR' wherein R' is substituted or unsubstituted: alkyl having 1-6 carbon atoms, aryl such as phenyl or phenyl alkyl having 7-12 carbon atoms, heterocyclyl or heterocyclylalkyl wherein alkyl has 1-3 carbon atoms and the heterocyclic moiety has 1-4 hetero atoms selected from 0, N, or S: and the easily removable or pharmaceutically acceptable salt or ester derivatives thereof; and the other component is a dipeptidase (E.C.3.4.13.11) inhibitor. The dual-component combination is formulated so that 1 to 3 parts by weight of the penem are employed for 30 to 1 parts by weight of the inhibitor compound.
Oral antibacterial compositions and method for the improvement of gastrointestinal absorption of penem or carbapenem antibiotics
申请人:SUNTORY LIMITED
公开号:EP0497353A2
公开(公告)日:1992-08-05
Oral antibacterial compositions contain a penem or carbapenem antibiotic in combination with an absorption improver selected from substances capable of inhibiting the dipeptidase localized on/in epithelial cells of the small intestine, cilastatin, glutathione and N-acetyl-L-cysteine. Gastrointestinal absorption of the penem or carbapenem antibiotic can be improved by orally administering the absorption improver in combination with the antibiotic.