摘要:
Antibiotic A53868 factor A, which is N.sup.2 -glycyl-N-(2-methylene-2-phosphonoethyl)leucinamide, and the formula: ##STR1## and the salts thereof, which are useful as antibiotics or as intermediates to antibiotics; methods of preparing A53868 factor A by fermentation of Streptomyces luridus; and the microorganism S. luridus NRRL 15101.
摘要:
Antibiotic A53868 factor A, which is N.sup.2 -glycyl-N-(2-methylene-2-phosphonoethyl)leucinamide, and the formula: ##STR1## and the salts thereof, which are useful as antibiotics or as intermediates to antibiotics; methods of preparing A53868 factor A by fermentation of Streptomyces luridus; and the microorganism S. luridus NRRL 15101.
摘要:
Methods of controlling Mycoplasma infections which comprise administering to an infected or susceptible warm-blooded animal an effective amount of a new macrocin or lactenocin ester derivative of the formula: ##STR1## wherein R is formyl or hydroxymethyl; R.sup.1 is hydrogen, acetyl or propionyl; R.sup.2 is hydrogen or ##STR2## and R.sup.3 is hydrogen, acetyl, propionyl, n-butyryl or isovaleryl; provided that one of R.sup.1 or R.sup.3 must be other than hydrogen; or a pharmaceutically acceptable acid addition salts thereof.
摘要翻译:控制支原体感染的方法包括向感染的或易感染的温血动物施用有效量的下式的新的大分子或乳内酯衍生物:其中R是甲酰基或羟甲基; R1是氢,乙酰基或丙酰基; R 2是氢或者R 3是氢,乙酰基,丙酰基,正丁酰基或异戊酰基; 条件是R1或R3中的一个必须不是氢; 或其药学上可接受的酸加成盐。
摘要:
Methods of controlling Pasteurella infections are provided which comprise administering to an infected or susceptible warm-blooded aninal an effective amount of a composition comprising (1) a suitable pharmaceutical vehicle and (2) a compound selected from the group consisting of desmycosin, lactenocin, cirramycin A.sub.1, 23-deoxy-5-0-mycaminosyltylonolide, antibiotic M-4365 G.sub.2, 9-dihydrodesmycosin, 9-dihydrolactenocin, 20-dihydrodesmycosin, 20-dihydrolactenocin, rosaramicin, and the pharmaceutically acceptable acid addition salts of these compounds.
摘要:
Method of controlling Ureaplasma infections which comprises administering to an infected or susceptible warm-blooded animal an effective amount of 5-0-mycaminosyl tylonolide or a pharmaceutically acceptable acid addition salt thereof.
摘要:
Method of controlling Pasteurella infections which comprises administering to an infected or susceptible warm-blooded animal an effective amount of 5-O-mycaminosyl tylonolide or a pharmaceutically acceptable acid addition salt thereof.
摘要:
Controlled release formulations useful in the prolonged treatment and control of microbial infections in animals are comprised of a microbial agent intimately dispersed throughout a copolymer derived from lactic acid and glycolic acid. A method for providing protection to animals for extended periods of time following a single administration is provided.
摘要:
Antibiotic compositions comprising tylosin and apramycin are effective in the treatment and control of colibacillosis in weanling pigs, and demonstrate greater effectiveness than apramycin alone or tylosin alone.