摘要:
Strains of Actinoplanes produce an antibiotic substance upon aerobic cultivation. The antibiotic is soluble in water with a pronounced band in the UV absorption spectrum at 267 nm. Methods for preparing and using the antibiotic, both therapeutically and for promoting livestock growth, and composition adapted for these uses are described.
摘要:
Strains of Actinoplanes produce an antibiotic substance upon aerobic cultivation. The antibiotic is sparingly soluble in water with a pronounced band in the UV absorption spectrum at 307 nm. Methods for preparing and using the antibiotic, both therapeutically and for promoting livestock growth, and composition adapted for these uses are described.
摘要:
The invention relates to the provision of an antimicrobial antibiotic obtained by culturing Actinoplanes strain ATCC 31440 under aerobic conditions in the presence of sources of carbon and nitrogen and in the presence of trace amounts of minerals. In addition to their use as antimicrobials, the antibiotics of the invention can be used for improving the growth and feed utilization in animals.
摘要:
The present invention relates to new 8-amino-10-(azabicycloalkyl)-pyrido�1,2,3-d,e!�1,3,4!benzoxadiazine derivatives of the general formula (I) ##STR1## in which the radicals R.sup.1 to R.sup.4, Z and X.sup.1 have the meaning given in the description, processes for their preparation and their use in antibacterial compositions.
摘要:
Novel thienooxazines of the formula ##STR1## in which R.sup.1 and R.sup.2, together with the adjacent C atoms, represent an optionally substituted thiophene ring,R.sup.3 represents hydrogen, optionally substituted alkyl, cycloalkyl, alkenyl or aryl, andR.sup.4 represents optionally substituted alkyl, cycloalkyl, alkenyl or aryl, orR.sup.3 and R.sup.4, together with the adjacent nitrogen atom, form a saturated heterocyclic structure which may optionally contain further hetero atoms,promote the yield of animals, e.g. rate of growth, ratio of meat to fat, etc. They are made from new intermediates of the formulas ##STR2## in which R.sup.5 and R.sup.6 may be hydrogen or various organic radicals, or together form a ring.
摘要:
Substituted isoxazolidines of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl, cycloalkyl, aralkyl, aryl or heteroaryl or radicals of the formula --COR.sup.4,R.sup.4 represents optionally substituted alkyl, aryl, alkoxy, alkylthio, aroxy, arylthio, amino, alkylamino, dialkylamino, arylamino, arylalkylamino, diarylamino or cycloalkylamino, or optionally substituted heterocyclic radicals which are bonded via nitrogen,R.sup.2 represents hydrogen or the radicals mentioned for R.sup.1, it being possible for R.sup.1 and R.sup.2 to be identical or different, andR.sup.3 represents optionally substituted alkyl, cycloalkyl, alkenyl, alkinyl or aryl, or saturated heterocyclic radicals, which are optionally substituted,and acid salts thereof, are pesticidally active and increase animals' utilization of feed. Intermediates therefor are also new.
摘要:
Compounds useful in the treatment of cholesterolaemia are of the general formula ##STR1## or salts thereof in which R.sup.1 and R.sup.2 independently denote radicals including hydrogen, alkyl, aryl and heterocyclic radical or together complete a carbocyclic or heterocylic ring, R.sup.3 denotes a radical ##STR2## in which R.sup.9, R.sup.10 and R.sup.11 include hydrogen, cyano, nitro, alkyl and aryl or, in pairs, complete carbocyclic rings, X denotes cyano, nitro or substituted carbonyl, sulphonyl or phosphonyl group, R.sup.4 is hydrogen or a radical defined for R.sup.1 or R.sup.3, and R.sup.5, R.sup.6, R.sup.7 and R.sup.8 include hydrogen, nitro, cyano, carboxyl, alkyl and aryl or, in pairs, complete carbocyclic rings, with the proviso that R.sup.1 and R.sup.9 are not both phenyl if X denotes CO--C.sub.6 H.sub.6. The compounds exhibit considerably higher hypocholesterolaemic activity than the known clofibrate and in addition exhibit a pronounced nutritive effect, e.g., in a medicated fodder or premix.
摘要:
The invention provides compositions containing cladosporin and/or analogs of cladosporin. Said composition in the form of treated feed compositions or treated drinking water promote and accelerate the growth of animals and improve feedstuff utilization.
摘要:
The present invention relates to novel optionally substituted 8-cyano-1-cyclo-propyl-7-(2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acids and their derivatives, of the general formula (I) in which R1 represents hydrogen, C1-C4-alkyl which is optionally substituted by hydroxyl, methoxy, amino, methylamino or dimethylamino, or (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl, R2 represents hydrogen, benzyl, C1-C3-alkyl, (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl, radicals having the structures —CH═CH—COOR3, —CH2CH2COOR3, —CH2CH2CN, —CH2CH2COCH3 or —CH2COCH3, in which R3 represents methyl or ethyl, or a radical of the general structure R4—(NH—CHR5—CO)n—, in which R4 represents hydrogen, C1-C3-alkyl or the radical —COO-tert-butyl, R5 represents hydrogen, C1-C4-alkyl, hydroxyalkyl, aminoalkyl, thioalkyl, carboxyalkyl or benzyl and n is 1 or 2, and Y is oxygen or sulfur, the process for their preparation and their use in antibacterial compositions.
摘要:
The present invention relates to the use of microbiologically prepared compounds and their mixtures, which are called efomycins, as performance promoters in farm animals and processes for their preparation, and furthermore new efomycins and their mixtures as new chemical compounds. The invention also relates to microorganisms which can be used for the preparation of the efomycins and their mixtures.