摘要:
Antibacterial agents have the formula (I) or are pharmaceutically acceptable salts or in vivo hydrolysable esters thereof: ##STR1## wherein R.sup.3 is phenyl, substituted phenyl, cyclohexenyl, cyclohexadienyl or an optionally substituted 5- or 6-membered heterocyclic ring containing up to three hetero atoms selected from oxygen, sulphur or nitrogen, R.sup.4 is hydrogen or formamido, R.sup.5 is hydrogen, C.sub.1-6 alkyl, substituted alkyl, aryl or aralkyl, R.sup.6 and R.sup.7 are the same or different and represent hydrogen, C.sub.1-6 alkyl, substituted alkyl, halogen, amino, phenyl, substituted phenyl, hydroxyl or C.sub.1-6 alkoxy or R.sup.6 and R.sup.7 form the residue of an optionally substituted 5- or 6-membered carbocyclic ring or a 5- or 6- membered heterocyclic ring containing up to three hetero atoms selected from oxygen, sulphr or nitrogen, and X represents ##STR2## or tautomers thereof wherein R.sup.8 and R.sup.9 are the same or different and each represents hydroxy, or protected hydroxy.
摘要:
Compounds of the formula (III): ##STR1## wherein R.sub.1 is alkyl of up to 3 carbon atoms and R.sub.2 is alkyl of up to 3 carbon atoms optionally joined to R.sub.1 so that R.sub.1 and R.sub.2 and the carbon atom to which they are attached form a spiro-cyclopentyl or spiro-cyclohexyl ring, and wherein the configuration about the .beta.-lactam ring is trans, are useful in the preparation of antibacterial .beta.-lactam compounds.A process for the preparation of the compounds of the formula (III), is also desired.
摘要:
This invention relates to novel substituted ceph-3-ems some of which are of value as intermediates in the synthesis of antimicrobially active cephalosporin analogues whilst others are useful as antimicrobial agents in their own right. The invention is described in Part D of this specification. Parts A, B, C and E relate to starting materials and processes necessary for the preparation of the novel cephems.
摘要:
Compounds are provided of the formula (II): ##STR1## wherein R.sub.1 is a group such that CO.sub.2 R.sub.1 is an ester group and A.sub.1 is a hydrogen atom or a methyl group. These compounds possess antibacterial activity. The preparation of these compounds is described.
摘要翻译:化合物由式(II)提供:其中R 1是使CO 2 R 1是酯基并且A 1是氢原子或甲基的基团。 这些化合物具有抗菌活性。 描述了这些化合物的制备。
摘要:
Compounds are described of the formula (II): ##STR1## wherein R.sub.1 is a group such that CO.sub.2 R.sub.1 is an ester group; A.sub.1 is a hydrogen atom; and A.sub.2 is a group CR.sub.2 R.sub.3 R.sub.4 wherein R.sub.2 is a hydrogen atom or a hydroxyl group; R.sub.3 is a hydrogen atom or a lower alkyl group; and R.sub.4 is a hydrogen atom or a lower alkyl group, a benzyl group, a phenyl group or is joined to R.sub.3 to form part of a C.sub.5-7 carboxylic ring or is a group of the formula CH(OH)R.sub.5 or CHX wherein R.sub.5 is a hydrogen atom or lower alkyl group and X is an oxygen atom or a CR.sub.6 R.sub.7 group where R.sub.6 is a hydrogen atom or a lower alkyl, phenyl, CN, CO.sub.2 R.sub.8 where R.sub.8 is a lower alkyl, phenyl or benzyl group and R.sub.7 is a hydrogen atom or a lower alkyl group or is joined to R.sub.6 to form part of a C.sub.5-7 carbocyclic ring. These compounds have been found to possess antibacterial properties. The preparation of these compounds is described.
摘要:
A process for the preparation of a compound of the formulae (Ia) and/or (Ib): ##STR1## wherein R.sup.1 and R.sup.2 are independently substituted or unsubstituted hydrocarbon groups or are joined together so as to form a carbocyclic or heterocyclic ring, and R.sup.3 is a substituted or unsubstituted hydrocarbon group; which process comprises the ring-closing cyclization of a compound of the formula (II): ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined in relation to formulae (Ia) and (Ib).
摘要:
The present invention provides the antibacterial agents of the formula (II): ##STR1## wherein R.sub.1 is a group such that CO.sub.2 R.sub.1 is a carboxylic acid group or a salt thereof or is a group of the formula CO.sub.2 R.sub.1.sup.1 wherein R.sub.1.sup.1 is a group such that CO.sub.2 R.sub.1.sup.1 is an ester group, R.sub.2 is a hydrogen atom or a lower alkyl group; R.sub.3 is a hydrogen atom or a lower alkyl group; and R.sub.4 is a phenyl group or a phenyl group substituted by one or two groups selected from fluorine, chlorine, OR.sub.5, NH.CO.R.sub.5, NH.CO.sub.2 R.sub.5 or CO.sub.2 R.sub.5 where R.sub.5 is a lower alkyl or benzyl group.A process for their preparation and their use in pharmaceutical compositions is also described.
摘要翻译:本发明提供式(II)的抗菌剂:其中R 1是CO 2 R 1是羧酸基或其盐的基团,或者是式CO 2 R 11的基团,其中R 11是这样的基团,使得CO 2 R 11 是酯基,R2是氢原子或低级烷基; R3是氢原子或低级烷基; R 4是苯基或被一个或两个选自氟,氯,OR 5,NH.CO.R 5,NH.CO 2 R 5或CO 2 R 5的基团取代的苯基,其中R 5是低级烷基或苄基。 还描述了其制备方法及其在药物组合物中的应用。
摘要:
The compounds of the formula (II): ##STR1## wherein R.sub.1 is a group such that CO.sub.2 R.sub.1 is a carboxylic acid group or a salt or ester thereof; R.sub.2 is a group of the sub-formula (a) or (b):--CR.sub.4 .dbd.C(R.sub.5) NH.CO.sub.n R.sub.6 (a)--CR.sub.7 .dbd.C(R.sub.8)R.sub.9 (b)wherein R.sub.4 is a hydrogen atom or a lower alkyl group; R.sub.5 is a hydrogen atom or a lower alkyl group; R.sub.6 is a lower alkyl, phenyl, fluorophenyl, chlorophenyl, bromophenyl or benzyl group; and n is 1 or 2; R.sub.7 is a hydrogen or a lower alkyl group; R.sub.8 is a hydrogen atom or a lower alkyl group; R.sub.9 is a hydrogen atom or a lower alkyl or phenyl group; R.sub.3 is a group of the sub-formula (c):CR.sub.10 R.sub.11 R.sub.12 (c)wherein R.sub.10 is a hydrogen atom or a hydroxyl or O.CO.R.sub.13 or O.CO.OR.sub.13 group where R.sub.13 is a lower alkyl, phenyl, benzyl, fluorobenzyl, chlorobenzyl, bromobenzyl, lower alkoxybenzyl or nitrobenzyl group; R.sub.11 is a hydrogen atom or a lower alkyl group; R.sub.12 is a hydrogen atom or a lower alkyl group; said compounds being in the form of R,S-mixture at C-5: are antibacterial agents. Their use and a process for their preparation is described.
摘要:
Compounds are described of the formula (II): ##STR1## wherein R.sub.1 is a group such that CO.sub.2 R.sub.1 is an ester group; A.sub.1 is a hydrogen atom; and A.sub.2 is a group CR.sub.2 R.sub.3 R.sub.4 wherein R.sub.2 is a hydrogen atom or a hydroxyl group; R.sub.3 is a hydrogen atom or a lower alkyl group; and R.sub.4 is a hydrogen atom or a lower alkyl group, a benzyl group, a phenyl group or is joined to R.sub.3 to form part of a C.sub.5-7 carboxylic ring or is a group of the formula CH(OH)R.sub.5 or CHX wherein R.sub.5 is a hydrogen atom or lower alkyl group and X is an oxygen atom or a CR.sub.6 R.sub.7 group where R.sub.6 is a hydrogen atom or a lower alkyl, phenyl, CN, CO.sub.2 R.sub.8 where R.sub.8 is a lower alkyl, phenyl or benzyl group and R.sub.7 is a hydrogen atom or a lower alkyl group or is joined to R.sub.6 to form part of a C.sub.5-7 carbocyclic ring. These compounds have been found to possess antibacterial properties. The preparation of these compounds is described.
摘要:
The present invention provides a compound of formula (I): ##STR1## wherein R.sup.1 is a group such that COOR.sup.1 is a carboxyic acid group or a salt or ester thereof;R.sup.3 is hydrogen or an organic radical;n is zero or 1;R.sup.4 and R.sup.5 are independently hydrogen or C.sub.1 -C.sub.3 alkyl;X is C.sub.1 -C.sub.6 alkylene optionally substituted by hydroxy or a carboxylic acid group or a salt or ester thereof;Y is an amino, or substituted amino, wherein the substituent is carboxylic acyl, C.sub.1 -C.sub.6 alkyl or a group .dbd.C(R.sup.14)NR.sup.15 R.sup.16 wherein R.sup.15 and or C.sub.1 -C.sub.6 alkyl and R.sup.14 is hydrogen or C.sub.1 -C.sub.6 alkyl, or a group --NR.sup.A R.sup.B wherein R.sup.A and R.sup.B are independently hydrogen or C.sub.1 -C.sub.6 alkyl.