摘要:
An antibiotic SF-2103A substance or a salt thereof, and a process for the production thereof are described, and the process comprises cultivating an antibiotic SF-2103A substance-producing strain in a nutrient medium and recovering the desired substance from the culture broth.
摘要:
2,3-disubstituted-4-hydroxyquinoline derivatives of the general formula (I): ##STR1## [wherein R.sup.1 represents a hydrogen atom or R.sup.3 CO-- (wherein R.sup.3 is a lower alkyl group); R.sup.2 represents a hydrogen atom, --CH.sub.3 or --C.sub.2 H.sub.5 ; A represents ##STR2## and W represents a hydrogen atom, or 1- 4 halogen atoms or alkyl groups which are substituted at the nucleus and may be the same or different] have a strong antagonistic action on leukotriene D.sub.4.
摘要翻译:(I)的2,3-二取代-4-羟基喹啉衍生物:其中R1表示氢原子或R3CO-(其中R3是低级烷基); R 2表示氢原子,-CH 3或-C 2 H 5; A表示,W表示氢原子或1-4个卤原子或在核上被取代且可相同或不同的烷基对白三烯D4具有强拮抗作用。
摘要:
A novel compound having an intense insecticidal activity and a process for producing the same which comprises culturing a strain belonging to the genus Humicola and isolating the compound from the culture.
摘要:
An antibiotic substance represented by formula (I) ##STR1## or a pharmaceutically acceptable salt thereof, which is produced by cultivating a microorganism belonging to the genus Streptomyces and isolating the substance from the cultured cells.
摘要:
Novel antibiotic SF-2288 is produced by fermentation of an actinomycete belonging to the genus Actinomadura in nutrient medium. Based on its physico-chemical and biological properties, antibiotic SF-2288 possesses an excellent antimicrobial activity against Gram-positive and Gram-negative microorganisms and antiviral activity.
摘要:
A novel substance having anthelmintic activity, the PF 1022 substance, which is produced by cultivating a fungal strain capable of producing the substance and recovering the substance from the culture.
摘要:
Novel substances exhibiting antimicrobial activity and antitumor activity, a process for producing them by cultivating a microorganism belonging to the genus Streptomyces and capable of producing them and derivatives of such substances.
摘要:
Two new antibiotics which are now nominated as benanomicin A and benanomicin B, respectively, are fermentatively produced by the cultivation of a new microorganism, designated as MH193-16F4 strain, of Actinomycetes. Benanomicins A and B each show antifungal activity and are useful as a therapeutic antifungal agent. A new compound, dexylosylbenanomicin B is now produced by chemical conversion of benanomicin B, and this semi-synthetic antibiotic also shows antifungal activity and is useful as a therapeutic antifungal agent.
摘要:
Fluorophthalimide compounds represented by the following general formula (I): ##STR1## wherein R each stands for an ethyl group or an isopropyl group, are effective for controlling diseases of agricultural plants, especially diseases caused by microorganisms belonging to the genus Rhizoctonia, represented by sheath blight of rice plants, and diseases caused by Basidomycetes.
摘要:
This disclosure describes a novel antibiotic designated Vermisporin produced in a microbiological fermentation using, for example, a new strain of Ophiobolus Vermisporus L-8. This novel antibiotic is an active antibacterial, especially anti-anaerobic bacterial agent.