摘要:
A compound having the formula: ##STR1## wherein R.sup.1 is a straight chain, branched chain or cyclic lower alkyl group which may be substituted by a carboxyl group, and each of R.sup.2 and R.sup.3 which may be the same or different, is a hydrogen atom, a hydroxyl group, a methoxy group or an acetoxy group, and R.sup.4 is a hydroxyl group, a methoxy group or an acetoxy group; or a pharmaceutically acceptable salt, physiologically hydrolyzable ester or solvate thereof.
摘要:
A compound of the formula: ##STR1## wherein R is a hydrogen atom or a methyl group, R.sup.1 is a hydrogen atom or a negative charge, each of R.sup.2 and R.sup.3 which may be the same or different, is a hydrogen atom, a lower alkyl group, a hydroxy lower alkyl group, a formimidoyl group, an acetoimidoyl group, --COOR.sup.4, --CON(R.sup.5)R.sup.6, --N(R.sup.5)R.sup.6, --CH.sub.2 COOR.sup.4, --CH.sub.2 N(R.sup.5)R.sup.6 or --CH.sub.2 CON(R.sup.5)R.sup.6 (wherein R.sup.4 is a hydrogen atom or a lower alkyl group, each of R.sup.5 and R.sup.6 which may be the same or different, is a hydrogen atom or a lower alkyl group, or R.sup.5 and R.sup.6 form together with the adjacent nitrogen atom a heterocyclic group selected from the group consisting of an aziridinyl group, an azetidinyl group, a pyrrolidinyl group and a piperidyl group), A is .dbd.NR.sup.7, .dbd.N.sup.+ (R.sup.7)R.sup.8, wherein each of R.sup.7 and R.sup.8 which may be the same or different, is a hydrogen atom, a lower alkyl group, a hydroxy lower alkyl group, a formimidoyl group, an acetoimidoyl group, --COOR.sup.4, --CON(R.sup.5)R.sup.6, --N(R.sup.5)R.sup.6, --CH.sub.2 COOR.sup.4, --CH.sub.2 N(R.sup.5)R.sup.6 or --CH.sub.2 CON(R.sup.5)R.sup.6 (wherein R.sup.4, R.sup.5 and R.sup.6 are as defined above), p is an integer of from 0 to 3, and q is an integer of from 1 to 3; or a pharmaceutically acceptable salt or ester thereof.
摘要翻译:下式的化合物:其中R是氢原子或甲基,R 1是氢原子或负电荷,R 2和R 3可以相同或不同,为氢原子 ,低级烷基,羟基低级烷基,亚氨基,亚氨酰基,-COOR4,-CON(R5)R6,-N(R5)R6,-CH2COOR4,-CH2N(R5)R6或-CH2CON( R5)R6(其中R4是氢原子或低级烷基,R5和R6各自可以相同或不同,是氢原子或低级烷基,或R5和R6与相邻的氮原子一起形成) 选自氮丙啶基,氮杂环丁烷基,吡咯烷基和哌啶基的杂环基),A为= NR 7 = N +(R 7)R 8,其中R 7和R 8可以相同或不同, 不同的是氢原子,低级烷基,羟基低级烷基,亚氨基,亚氨代乙酰基,-COOR4,-CON(R5)R6,-N(R5)R6,-CH2COOR4,-CH2N(R5 )R6或-CH2CON(R5)R6(其中 在R4中,R5和R6如上所定义),p是0-3的整数,q是1至3的整数; 或其药学上可接受的盐或酯。
摘要:
A compound of the formula: ##STR1## wherein R is a hydrogen atom or a methyl group, R.sup.1 is a hydrogen atom or a negative charge, R.sup.2 is a lower alkyl group, a lower alkyl group substituted with a hydroxyl group or --COOR.sup.3 (wherein R.sup.3 is a hydrogen atom or a lower alkyl group), A is .dbd.NH, .dbd.NR.sup.4 or .dbd.N(R.sup.4)R.sup.5 (wherein each of R.sup.4 and R.sup.5 which may be the same or different, is a lower alkyl group or a lower alkyl group substituted with a hydroxyl group), p is an integer of from 0 to 3, and each of q and r which may be the same or different, is an integer of from 0 to 5, provided that q and r are not simultaneously 0 and q +r.ltoreq.6; or a pharmaceutically acceptable salt or ester thereof.
摘要:
The present invention relates to a compound having the formula: ##STR1## wherein R is a hydrogen atom, a carboxyl-protecting group or a negative charge and Q is a hydrogen atom, a halogen atom, a hydroxyl group, an acetoxy group, a carbamoyloxy group, an azide group, a substituted or unsubstituted quarternary ammonio group or a substituted or unsubstituted heterocyclic thio group having at least one hetero atom selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, or a non-toxic salt or physiologically hydrolyzable non-toxic ester thereof; a process for producing it; and an antibacterial agent comprising it as an active ingredient.Further, the present invention also relates to a compound having the formula: ##STR2## wherein R.sup.3 is a hydrogen atom or an amino-protecting group, and each of R.sup.4 and R.sup.5 which may be the same or different is a hydrogen atom or a carboxyl-protecting group, or a salt thereof; and a process for producing it.
摘要:
A compound having the formula: ##STR1## wherein R is a vinyl, phenyl or aralkyl group which may be substituted; or a pharmaceutically acceptable salt, physiologically hydrolyzable ester or solvate thereof.
摘要:
A compound having the formula: ##STR1## wherein R is a hydrogen atom, a lower alkyl group, an alkanoyl group, an aralkyl group, an alkylsulfonyl group or an arylsulfonyl group, and R.sup.1 is a hydrogen atom or a protecting group for a hydroxyl group, or a salt thereof.
摘要:
The present invention relates to a compound represented by the structural formula I: ##STR1## its pharmaceutically acceptable salt or ester, or its crystalline, which is a novel optically active compound useful as a curing agent for bacterial infections, a process for production thereof and a use thereof.
摘要:
The present invention relates to a compound represented by the structural formula: ##STR1## or its pharmaceutically acceptable salt or ester, which is a novel optically active compound useful as a curing agent for bacterial infections, a process for production thereof and a use thereof.
摘要:
A compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is a hydrogen atom or a lower alkyl group, each of R.sup.3, R.sup.4 and R.sup.5 is a hydrogen atom or a lower alkyl group, or R.sup.3 and R.sup.4 together form a methylene group, an ethylene group or a propylene group, or R.sup.4 and R.sup.5 form together with the adjacent nitrogen atom an aziridinyl group, an azetidinyl group, a pyrrolidinyl group, a piperidino group, a piperazinyl group or a morpholino group; or a pharmaceutically acceptable salt or ester thereof.