摘要:
A polypeptide compound having antimicrobial activity of the following general formula: ##STR1## wherein R.sup.1 is hydrogen or acyl group, R.sup.2 is hydroxy or acyloxy,R.sup.3 is hydroxysulfonyloxy, andR.sup.4 is hydrogen or carbamoyl,with proviso thatR.sup.1 is not palmitoyl, when R.sup.2 is hydroxy,R.sup.3 is hydroxysulfonyloxy andR.sup.4 is carbamoyl,and a pharmaceutically acceptable salt thereof.
摘要:
A compound represented by the following general formula: ##STR1## which is useful as an intermediate for production of a clinically excellent synthetic antibacterial, a salt thereof, and a process for producing the same.In said formula,R.sup.1 is a hydrogen atom or a carboxyl-protecting group;R.sup.2 is a hydrogen atom or a lower alkyl group;X.sup.1 is a hydrogen atom or a halogen atom;X.sup.2 is a halogen atom;X.sub.a.sup.5 is a hydrogen atom or a halogen atom;A is a methylene group; a group of >CH--COOR.sup.4, etc.,in which R.sup.4, R.sup.5 and R.sup.6 each are a hydrogen atom or a carboxyl-protecting group;B is a methylene group or a carbonyl group;provided that both A and B must not be methylene groups at the same time.
摘要:
Cephem compounds having the following formula are disclosed: ##STR1## R.sup.1 =amino or protected amino R.sup.2 =an organic group ##STR2## R.sup.6 =lower alkyl R.sup.7, R.sup.8 .dbd.OH or protected OHY.dbd.N or CHThe compounds are useful as antimicrobial agents.
摘要翻译:公开了具有下式的头孢烯化合物:R1 =氨基或被保护的氨基R2 =有机基团R6 =低级烷基R7,R8 = OH或受保护的OH Y = N或CH该化合物可用作抗微生物剂 。
摘要:
The invention relates to compounds of antimicrobial activity, of the formula ##STR1## wherein R.sup.1 is amino or protected amino,R.sup.2 is lower alkyl or lower alkenyl,R.sup.3 is lower alkyl, hydroxy(lower)alkyl or protected hydroxy(lower)alkyl,R.sup.4 is amino, protected amino, lower alkylamino, protected lower alkylamino, carboxy(lower)alkylamino, N-[protected carboxy(lower)alkyl]amino andR.sup.7 is hydrogen or lower alkyl, ora pharmaceutically acceptable salt thereof.
摘要:
The invention relates to novel halovinyl cephem derivatives of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is a group of the formula:R.sup.4 --A--CONH--in which R.sup.4 is cyano(lower)alkenylthio or a group of the formula: ##STR2## in which R.sup.6 is hydrogen, amino or a protected amino group, andA is carbonyl, lower alkylene, hydroxy(lower)alkylene or a group of the formula: ##STR3## in which R.sup.5 is hydrogen, carboxy(lower)alkyl or protected carboxy(lower)alkyl;R.sup.2 is carboxy or a protected carboxy group; andX is halogen, and pharmaceutically acceptable salts thereof.
摘要:
Antibiotic cephalosporin compounds, method of making and pharmaceutical composition thereof represented by the general formula ##STR1## wherein R.sup.1 is amino, lower alkylamino, a protected amino, a protected lower alkylamino, hydroxy or lower alkoxy,R.sup.2 is hydrogen, acyloxy, pyridium or a heterocyclicthio group which may have suitable substituent(s),R.sup.3 is carboxy or its derivative,A is carbonyl, hydroxy(lower)alkylene or a protected hydroxy(lower)alkylene andR.sup.4 is hydrogen or halogen, orR.sup.2 and R.sup.3 are linked together to represent a group of the formula --COO--, this divisional application being directed to intermediate compounds of the formula: ##STR2##
摘要:
This invention relates to new cephem and cepham compounds of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is amino or a protected amino,R.sup.2 is hydrogen, acyl, aryl which may be substituted with suitable substituent(s), lower alkyl substituted with suitable substituent(s), lower alkenyl, lower alkynyl, cycloalkyl which may be substituted with suitable substituent(s), cyclo(lower)alkenyl, or S or O containing 5-membered heterocyclic group substituted with oxo group(s),R.sup.3 is hydrogen or lower alkyl,R.sup.4 is hydrogen, acyloxy(lower)alkyl; acylthio(lower) alkyl; pyridinium(lower)alkyl which may be substituted with suitable substituent(s); a heterocyclicthio(lower)alkyl which may be substituted with suitable substituent(s); lower alkyl;l halogen; hydroxy; thiazolium(lower)alkyl which may be substituted with suitable substituent(s); or lower alkoxy; R.sup.5 is carboxy or a protected carboxy, wherein R.sup.5 is COO.sup.- when R.sup.4 is pyridinium(lower)alkyl which may be substituted with suitable substituent(s) or thiazolium(lower)alkyl which may be substituted with suitable substituent(s), and the heavy solid line means single or double bond; and pharmaceutically acceptable salt thereof.
摘要:
7-Substituted-3-cephem and cepham-4-carboxylic acids of formula (I) ##STR1## wherein R.sup.1 is amino or a protected amino, R.sup.2 is hydrogen, acyl, aryl which may be substituted with suitable substituent(s), lower alkyl substituted with suitable substituent(s), lower alkenyl, lower alkynyl, cycloalkyl which may be substituted with suitable substituent(s), cyclo(lower)alkenyl, or S- or O-containing 5-membered heterocyclic group substituted with oxo group(s).R.sup.3 is hydrogen or lower alkyl,R.sup.4 is hydrogen; acyloxy(lower)alkyl; acylthio(lower)alkyl pyridinium(lower)alkyl which may be substituted with suitable substituent(s); a heterocyclicthio(lower)alkyl which may be substituted with suitable substituent(s); lower alkyl; halogen; or hydroxy; andR.sup.5 is carboxy or a protected carboxy wherein R.sup.5 is COO-- when R.sup.4 is pyridinium(lower)alkyl which may be substituted with suitable substituent(s), and the heavy solid line means single or double bond, have useful antibiotic properties.
摘要:
Antibiotic cephalosporin compounds, method of making and pharmaceutical composition thereof represented by the general formula ##STR1## wherein R.sup.1 is amino, lower alkylamino, a protected amino, a protected lower alkylamino, hydroxy or lower alkoxy,R.sup.2 is hydrogen, acyloxy, pyridium or a heterocyclicthio group which may have suitable substituent(s),R.sup.3 is carboxy or its derivative,A is carbonyl, hydroxy(lower)alkylene or a protected hydroxy(lower)alkylene andR.sup.4 is hydrogen or halogen, orR.sup.2 and R.sup.3 are linked together to represent a group of the formula --COO--.
摘要:
The invention relates to novel amino or acylamino-substituted pyrimidinyl cephalosporanic acid derivatives and pharmaceutically acceptable salts thereof, of antibacterial activity, to processes for the preparation thereof, and to pharmaceutical compositions comprising the novel cephalosporanic acid derivatives.