摘要:
A novel family of .beta.-lactam antibacterials, synthetic methods and intermediates useful in the production of such antibacterials, and the use of such compounds as antibacterials are disclosed. The novel compounds have the formula ##STR1## wherein, Z.sup.1 is a group --OR.sup.1, --NR.sup.3 R.sup.4, or --SR.sup.5 ;Z.sup.2 is a group --OR.sup.2, --NR.sup.3 R.sup.4, or --SR.sup.6 ;R.sup.1 and R.sup.2 may be either the same or different and each is H, lower alkyl, aralkyl, aryl or heteroaryl;R.sup.3 and R.sup.4 may be either the same or different and each is H, lower alkyl, aralkyl, aryl or heteroaryl;R.sup.5 and R.sup.6 may be either the same of different and each is H, lower alkyl, aralkyl, aryl or heteroaryl;R.sup.7 is H, lower alkyl, or lower alkoxycarbonyl; and,R.sup.8 is acyl;as well as pharmaceutically acceptable salts thereof.
摘要翻译:公开了一种新颖的β-内酰胺类抗生素,合成方法和用于生产这种抗菌剂的中间体,以及使用这些化合物作为抗菌剂。 该新化合物具有式“IMAGE”,其中,Z1为基团-OR1,-NR3R4或-SR5; Z2是基团-OR2,-NR3R4或-SR6; R 1和R 2可以相同或不同,各自为H,低级烷基,芳烷基,芳基或杂芳基; R 3和R 4可以相同或不同,各自为H,低级烷基,芳烷基,芳基或杂芳基; R 5和R 6可以是不同的,并且各自是H,低级烷基,芳烷基,芳基或杂芳基; R7是H,低级烷基或低级烷氧基羰基; R8是酰基; 以及其药学上可接受的盐。
摘要:
The amino acid 2-amino-4-(2-aminoethoxy)-trans-but-3-enoic acid can be conveniently prepared via novel intermediates from a 2,2'-disubstituted diethyl ether and a dialkyl N-protected amidomalonate starting material using a multi-step process. Preferred starting materials are bis-2-chloroethyl ether and diethyl acetamidomalonate. The process, in a preferred embodiment, proceeds through the key intermediate ethyl-2-acetamido-4-[2-(2-phthalimido)ethoxy]-but-2-enoate.
摘要:
There are presented antibacterial cephalosporine having broad antimicrobial activity, having the formula ##STR1## wherein R is hydrogen or a carboxylic acid-protecting group: R.sub.1 represents a substituted piperazinyl group of formula ##STR2## or a substituted pyrrolidinylamino group of formula ##STR3## or a substituted pyrrolidinylmethylamino group of formula ##STR4## where the piperazinyl or pyrrolidinyl group may be optionally substituted with one or more lower alkyl groups, and where Q represents a substituted quinolinyl or naphthyridinyl group: R.sub.2 is selected from the group consisting of hydrogen, lower alkoxy, lower alkylthio and amido; R.sub.3 is hydrogen or an acyl group: and m is 0, 1 or 2, but preferably 0; as well as the corresponding readily hydrolyzable esters. pharmaceutically acceptable salts and hydrates of these compounds.
摘要:
Antibacterial compounds of the formula ##STR1## in which R.sub.1 is a cyclic or secondary acyclic amino group which independently has antibacterial activity:R.sub.2 is hydrogen, lower alkoxy, lower alkylthio or formamido;R.sub.3 is hydrogen or an organic group bonded through carbon, oxygen, sulfur or nitrogen;R.sub.4 is an electronegative acidic group; or R.sub.3 and R.sub.4 together form a heterocycle; andR.sub.5 is a hydrogen or lower alkyl, except when R.sub.3 and R.sub.4 form a heterocycle, in which case R.sub.5 is hydrogen only; and methods of using same.
摘要:
The present invention provides oral formulations of poorly bioavailable and/or poorly absorbable, and/or poorly water soluble therapeutic agents. The invention features pharmaceutical composition including a biopolymer, a therapeutic agent, for example an antimicrobial agent such as ceftriaxone, and an absorption enhancer, for example a polyoxyethylene alkyl ether absorption enhancer. Methods of making and using the pharmaceutical compositions is also described.
摘要:
The present invention provides oral formulations of poorly bioavailable and/or poorly absorbable, and/or poorly water soluble therapeutic agents. The invention features pharmaceutical composition including a biopolymer, a therapeutic agent, for example an antimicrobial agent such as ceftriaxone, and an absorption enhancer, for example a polyoxyethylene alkyl ether absorption enhancer. Methods of making and using the pharmaceutical compositions is also described.
摘要:
There are presented anti-bacterial cephalosporins having broad antimicrobial activity of the formula ##STR1## wherein R.sub.1 is an antibiotically active quinolonyl; R.sub.2 is selected from the group consisting of hydrogen, lower alkoxy, amino, lower alkylthio and amido; R.sub.3 is selected from the group consisting of hydrogen, and acyl group, and m is 0, 1 or 2 and the readily hydrolysable esters or salts of these compounds and hydrates of the compounds of formula I or of their esters or salts.
摘要:
A process for synthesizing 3-acryloxymethyl antibacterialcephalosporin compounds of formula ##STR1## wherein R is hydrogen or a carboxylic acid protecting group; R.sup.1 is hydrogen or an acyl group; R.sup.2 is hydrogen or lower alkoxy; and R.sup.3 is carbocyclic aryl substituted on the ring with one or more members selected from the group consisting of hydroxy, lower alkyl, amino, cyano, lower alkoxy, halogen and alkylcarboxy,as well as the corresponding readily hydrolyzable esters, pharmaceutically acceptable salts and hydrates of these compounds where R is hydrogen, in which a 2-carboxylic acid 3-hydroxymethyl cephalosporin compound is first treated with an organic base to form an organic salt therewith, followed by acylation of the 3-hydroxymethyl substituent.
摘要:
There are presented antibacterial cephalosporins having broad antimicrobial activity as well as intermediates for their formation, such compounds having the formula ##STR1## wherein R is hydrogen or a carboxylic acid-protecting group; R.sub.1 is a substituted piperazinium group of the formula ##STR2## in which Q represents a substituted quinolinyl or naphthyridinyl group and the piperazine nucleus may be optionally substituted with one or more lower alkyl groups; R.sub.2 is selected from the group consisting of hydrogen, lower alkoxy, lower alkylthio and amido; R.sub.3 is hydrogen or an acyl group; and m is 0, 1 or 2, preferably 0;as well as the corresponding readily hydrolyzable esters, pharmaceutically acceptable salts and hydrates of these compounds.