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4463010 |
1-Aza-[3.2.0]-bicycloheptane-2-carboxylic acid, ester or salt thereof
A 1-aza[3.2.0]bicycloheptan-2-carboxylic acid or salt or ester thereof having a substituent at position 7 of the formula: CR 1 R 2 wherein R 1 and R 2 are independently hydrogen, halogen or...
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4455314 |
Penicillin derivatives
The preparation and use of 6,α-methoxy-6,β-[2-(2-methylphenoxycarbonyl)-2-(thien-3-yl
) acetamido] penicillanic acid of formula (II): ##STR1## or a pharmaceutically acceptable salt or in vivo...
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4385060 |
Penicillins
6β-[2-(2'-methylphenoxycarbonyl)-2-thien-3'-ylacetamido] penicillanic acid of formula (II): ##STR1## and pharmaceutically acceptable salts and in vivo hydrolyzable esters thereof, are active...
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4381307 |
Soft tertiary amine esters of bio-affecting carboxylic acids
Novel derivatives of known bio-affecting carboxylic acids R-COOH are disclosed, said derivatives having the structural formula ##STR1## wherein Y and Y' are each H or C 1 -C 4 alkyl; n is 0 or 1;...
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4182710 |
Ketenimine intermediates for 6α-methoxy-α-carboxy penicillins
A class of ketenimine intermediates are prepared from 6-acylaminopenicillins having an α-carboxy substituent in the side-chain, and are useful in the preparation of 6α-methoxy-α-carboxy...
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4081443 |
Penicillin oxides
Compounds of the formula: ##STR1## (where COB is carboxy or protected carboxy and X is hydrogen or nucleophilic group) preparable by oxidation of the corresponding N-nitrosopenicillin derivatives...
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4036829 |
Lactonyl esters of penicillins
Lactonyl esters of Penicillins of the formula ##STR1## WHEREIN R 1 is an antibacterially active penicillin-completing side chain; R is hydrogen, methyl or phenyl; and Ra, Rb, Rc, Rd are hydrogen,...
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4005073 |
6-Acyl derivatives of aminopenicillanic acid
Compounds represented by the following formula ##STR1## wherein R is hydrogen, lower alkanoyloxymethyl, lower alkyl, indanyl or a radical represented by the formula ##STR2## wherein X may be...
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RE29003 |
(R)-1-(2-furoyloxy)-3-methylbutyl-penicillin
Compounds represented by the following formula ##EQU1## wherein A is a substituted or unsubstituted heterocyclic radical and T is a C 2 -C 5 alkyl, alkenyl, cyclopropylmethyl, cyclobutylmethyl or...
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3963704 |
Penicillin esters
This invention relates to a novel class of esters of penicillins and cephalosporins which, upon oral administration are absorbed into the bloodstream where they are split by enzymic action to...
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3957758 |
6-Acyl derivatives of aminopenicillanic acid
Compounds represented by the following formula ##EQU1## wherein A is a substituted or unsubstituted heterocyclic radical and T is a C 2 -C 5 alkyl, alkenyl, cyclopropylmethyl, cyclobutylmethyl or...
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3956323 |
Furan, benzofuran and tetrahydrofuran carboxylic acid esters
Compounds represented by the following formula ##EQU1## wherein A is a substituted or unsubstituted heterocyclic radical and T is a C 2 -C 5 alkyl, alkenyl, cyclopropylmethyl, cyclobutylmethyl or...
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3951953 |
Pharmaceutical compositions
Complexes of a semi-synthetic penicillin and an anion exchange resin cross-linked less than 4% and wherein the penicillin, with or without a non-complexed additional penicillin, is absorbed onto...
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3948904 |
Isothiourea substituted cephalosporin derivatives
Novel cephalosporin and penicillin antibiotic derivatives.
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3894010 |
3-[2-(Thioacylthio)alkanamido]-1,4-[cyclo(1'-ca rboxy)-alkylenethio]azetidin-2-one derivatives and their preparation
3-[2-(Thioacylthio)alkanamido]-1,4-[cyclo-(1'-carboxy)alkyle
nethio]azetidin -2-one derivatives possessing antibacterial activity are produced by the reaction of a carbodithioic acid...
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3853849 |
ALPHA(ARYLOXYCARBONYL)-AND ALPHA(ALKOXY-CARBONYL)-ARALKYL PENICILLINS
New penicillins are provided which are α(aryloxycarbonyl)- and α(alkoxycarbonyl)-aralkyl penicillins represented by benzylpenicillins and thienylalkyl penicillins in which the α-carbon atom has...
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3839322 |
(R)-1-(2-FUROYLOXY)-3-METHYLBUTYL-PENCILLIN COMPOUNDS
Compounds represented by the following formula ##SPC1## Wherein A is a substituted or unsubstituted heterocyclic radical and T is a C 2 -C 5 alkyl, alkenyl, cycloproplymethyl, cyclobutylmethyl or...
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3681342 |
ESTERS OF -CARBOXYBENZYLPENICILLIN
Mono- and diesters of α-carboxybenzylpenicillin, a novel class of chemotherapeutic agents.
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3492291 |
BENZYLOXYCARBONYLBENZYLPENICILLINS AND THEIR CATALYTIC HYDROGENATION
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3557090 |
Title is not available
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3767645 |
Title is not available
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3574189 |
Title is not available
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3631056 |
Title is not available
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3574190 |
Title is not available
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3803128 |
Title is not available
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