Abstract: This invention relates to a new class of penicillins (I) and their pharmaceutically acceptable salts and esters which are useful as antibiotics: ##STR1## wherein the stylized radical (hereafter referred to as R'): ##STR2## represents a mono- or polycyclic N-containing heterocyclic group; R.sup.2 is H or OH; and R is, inter alia, hydrogen, substituted and unsubstituted: alkyl, aryl, alkenyl, heterocyclylalkyl, heterocyclylalkenyl, aralkyl, aralkenyl, --NR.sub.2, --COOR, CONR.sub.2, --OR or CN.

Abstract: Disclosed are O-, N- and substituted carboxyl derivatives of the antibiotic thienamycin, which has the following structure: ##STR1## Such derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such derivatives, pharmaceutical compositions comprising such derivatives, and methods of treatment comprising administering such derivatives and compositions when an antibiotic effect is indicated.

Abstract: Disclosed are N-derivatives of thienamycin having structures I and II. ##STR1## wherein: the bifunctional radical may contain additional unsaturation in the ring; and wherein n is an integer selected from 1-6; p is 0, 1 or 2; R.sup.1 is selected from hydrogen, alkyl having 1-6 carbon atoms, and aryl having 6-10 carbon atoms; and Z is imino (.dbd.NH), oxo (.dbd.O), hydrogen, amino, or alkyl having 1-6 carbon atoms. Such compounds and their pharmaceutically acceptable salt and ester derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds pharmaceutical compositions comprising such compounds and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

Abstract: Novel compounds of the following formula: ##STR1## wherein R' is alkyl of 1 to 3 carbon atoms, X.sup.- is a nontoxic anion; b and c are positive numbers having values such that the positive charge of b moles of cation are neutralized by c moles of anion X.sup.- ; and -.sup.+ is a bicyclic heterocyclic base, of the group consisting of: ##STR2## wherein the dotted lines indicates that the methyl group can be present or a hydrogen group can be present, with the proviso that the two alpha methyl groups are not present at the same time, but that one alpha methyl group is required. These compounds have superior coccidiostatic activity.

Abstract: Novel compounds of the following formula: ##STR1## WHEREIN R' is alkyl of 1 to 3 carbon atoms, X.sup.- is a nontoxic anion; b and c are positive numbers having values such that the positive charge of b moles of cation are neutralized by c moles of anion X.sup.-; and -N is a bicyclic heterocyclic base, of the group consisting of: ##STR2## wherein the dotted line indicates that the methyl group can be present or a hydrogen group can be present, with the proviso that the two alpha methyl groups are not present at the same time, but that one alpha methyl group is required. These compounds have superior coccidiostatic activity.

Abstract: An underwater surface cleaning apparatus particularly suitable for swimming pools which includes brushes driven by suction of water from immediately around the apparatus through a vane type motor which is coupled to rotate the brush. The motor can include hinged vanes.

Abstract: Substituted 2- and 4-pyridones, pyrimidin-2- and 6-ones and tetrahydroquinolones when complexed with 4,4'-dinitrocarbanilide provide agents which are active coccidiostats and which produce minimal toxic side effects. Processes for the preparation of these complexes as well as compositions suitable for administration to poultry for the prevention and cure of coccidiosis are also disclosed.