摘要:
A compound represented by the following formula: wherein R 6 means an amino group or an amino group blocked by a protecting group, and A 2 denotes a group represented by the following formula: a compound obtained by blocking -COO - of the first-mentioned compound with a protecting group, or a salt thereof. The compound can be used as an intermediate for a drug having antibacterial activity.
摘要:
3-Substituted vinyl cephalosporin derivatives represented by the following formula: wherein R 1 represents a hydroxyl or lower alkoxyl group, X represents a nitrogen atom or a group represented by the formula -CH =, R 2 represents a carboxyl group or a carboxyl group protected with a protecting group, and R 3 is as defined herein, and pharmaoeutically acceptable salts thereof are potent antibacterial agents. Processes for their preparation, intermediates in such processes, and antibacterial compositions containing them as active ingredients are also described.
摘要:
A cephem derivative represented by the following formula: wherein R₁ means a fluorine-substituted lower alkyl and A₁ denotes a cyclic or acyclic ammonio group, or a non-toxic salt thereof, is prepared by reacting a compound represented by the following formula: wherein A₁ has the same meaning as defined above, with another compound represented by the following formula: wherein R₁ has the same meaning as defined above, and if necessary, removing the protecting groups. The cephem compounds can be used for the manufacture of pharmaceutical compositions having antibacterial activity.
摘要:
The invention provides specific compounds being useful for the preparation of cephem derivatives of the following formula:
wherein R₁ means a fluorine-substituted lower alkyl and A₁ denotes a cyclic or acyclic ammonio group, or a non-toxic salt thereof. These specific compounds are given by the formulae
wherein R₇ means a lower alkyl group, or a salt thereof.
摘要:
A cyclic amine is defined by the formula: in which A is naphthyl, phenyl, quinolyl or alkyl, X is a group containing carbonyl, n is 2 or 3 and B is alkyl, halogen, phenyl or -YZ, Y being -0-, -CO- or -NH-, Z being phenyl, naphthyl, pyridyl, alkyl or cycloalkyl. It is useful for the making of a medicament to treat a mental symptome associated with a cerebrovascular disease and respective pharmaceutical compositions are disclosed.
摘要:
A cyclic amine is defined by the formula: in which A is naphthyl, phenyl, quinolyl or alkyl, X is a group containing carbonyl, n is 2 or 3 and B is alkyl, halogen, phenyl or -YZ, Y being -0-, -CO- or -NH-, Z being phenyl, naphthyl, pyridyl, alkyl or cycloalkyl. It is useful for the making of a medicament to treat a mental symptome associated with a cerebrovascular disease and respective pharmaceutical compositions are disclosed.
摘要:
A 3-propenylcephem derivative of the following formula: wherein R 1 represents a fluoro-substituted lower alkyl group or a cyano-substituted lower alkyl group, and A represents a cyclic or an acylic ammonio group, or a pharmaceutically acceptable salt thereof. exhibiting excellent anti-bacterial activities against both Gram-positive bacteria and Gram-negative bactena; Process for the preparation thereof; Anti-bacterial composition; Intermediate for the 3-propenylcehem derivative; and Process for the preparation of the intermediate.