摘要:
The invention provides compounds of the formula: ##STR1## wherein R, R.sup.3, R.sup.4, X and W are defined in the specification. These compounds are useful as antibiotic agents.
摘要:
The invention provides compounds of formula ##STR1## wherein X, R and R.sup.1 are defined in the specification. These compounds are useful as antibiotic agents.
摘要:
The invention provides compounds of the formula: ##STR1## wherein R, R.sup.3, R.sup.4, X and W are defined in the specification. These compounds are useful as antibiotic agents.
摘要:
The invention provides compounds of the formula: ##STR1## wherein R, R.sup.3, R.sup.4 and W are defined in the specification. These compounds are useful as antibiotic agents.
摘要:
Micromonospora arborensis produces a plurality of antibiotics named herein antibiotic 68-1147 complex, when cultivated under controlled aerobic conditions. Two of the antibiotics, antibiotic 68-1147 I and antibiotic 68-1147 II are described and shown to be effective antibacterial agents, especially against gram positive bacteria.
摘要:
A novel actinomycete herein designated Micromonospora rhodorangea elaborates a product having substantial antibacterial activity, said activity being due primarily to a novel antibiotic herein designated Antibiotic G-418. The disclosure sets forth methods for producing, isolating and using said antibiotic.
摘要:
The invention provides compounds of the formula: ##STR1## wherein R, R.sup.3, R.sup.4, X and W are defined in the specification. These compounds are useful as antibiotic agents.
摘要:
The invention is a process for the production by fermentation of the antibacterial and antiparasitic agents designated LL-D42067.alpha., to methods for its recovery and concentration from crude solutions and to processes for its purification. The invention includes within its scope the biologically pure culture of the antibiotic.
摘要:
This invention relates to antibiotic LL-E19020.alpha. and LL-E19020.beta. derived from the microorganism Streptomyces lydicus subspecies tanzanius NRRL 18036, which are useful as an antibacterial agent.
摘要:
This invention relates to new polypeptide antibiotics designated LL-BO2964.alpha., LL-BO2964.beta., LL-BO2964.gamma., and a mixture thereof designated LL-BO2964, produced during microbiological fermentation, under controlled conditions, using a new strain of Streptomyces coeruleorubidus subspecies rubidus or a mutant thereof. The new antibiotics are active against a variety of microorganisms and are also useful in treating tuberculosis.