摘要:
Acids, esters, imine acids, imine esters, and imine amides derived from 6-formyl-4,7,9-trihydroxy-1-phenazinecarboxylic acid, methyl ester and from 6-formyl-4,7,9-trihydroxy-8-methyl-1-phenazinecarboxylic acid, methyl ester demonstrate antimicrobial and antineoplastic activity.A purified strain of Streptomyces galanosa, NRRL 15738, is capable of producing 6-formyl-4,7,9-trihydroxy-8-methyl-1-phenazinecarboxylic acid, methyl ester in isolable quantities from a fermentation broth containing assimilable sources of carbon and nitrogen.
摘要:
A purified isolate of an actinomycete identified as ATCC 39363 is capable of producing a complex of sulfur-containing antibiotic compounds having activity against transplanted tumors.Antibiotic compounds CL-1577A and CL-1577B and their closely related congeners are produced by cultivating isolate ATCC 39363 under aerobic conditions in a culture medium containing assimilable sources of carbon and nitrogen until a substantial quantity of the CL-1577 complex is produced, and subsequently isolating the complex or one or more of the compounds.The antibiotic compounds CL-1577A, CL-1577B, their congeners, and pharmaceutical compositions comprising these substances together with a suitable carrier are also disclosed.
摘要:
The present invention relates to the novel trichothecenes, 12'-hydroxyverrucarin J and iso-satratoxin H, and a fermentation process for the production of said compounds.The invention also relates to pharmaceutical compositions comprising said compounds and methods for using said compositions.
摘要:
New hapalindole-type alkaloids called A89271 A-F and I are antifungal and antitumor agents. Methods for preparing them and for preparing hapalindoles G and H by culturing the blue-green alga Fischerella ambigua ATCC 55210 are provided. Methods for preparing A89271 factors B and F by culturing the blue-green alga Hapalosiphon hibernicus ATCC 55225 and a biologically pure culture of this alga are also provided. Further provided are methods and compositions for the inhibition of fungal growth and the treatment of susceptible neoplasms.
摘要:
New hapalindole-type alkaloids called A89271 A-F and I are antifungal and antitumor agents. Methods for preparing them and for preparing hapalindoles G and H by culturing the blue-green alga Fischerella ambigua ATCC 55210 are provided. Methods for preparing A89271 factors B and F by culturing the blue-green alga Hapalosiphon hibernicus ATCC 55225 and a biologically pure culture of this alga are also provided. Further provided are methods and compositions for the inhibition of fungal growth and the treatment of susceptible neoplasms.
摘要:
A new microorganism, Streptomyces avermitilis subspecies niger NRRL 21005, and processes using the microorganism for producing known avermectins are provided.
摘要:
New alkaloids called hapalindoles J-Q and T-V, which are antibacterial and antifungal agents, and methods of preparing these alkaloids by culturing the blue-green alga Hapalosiphon fontinalis ATCC 39694, are provided.
摘要:
New hapalindole-type alkaloids called A89271 A-F and I are antifungal and antitumor agents. Methods for preparing them and for preparing hapalindoles G and H by culturing the blue-green alga Fischerella ambigua ATCC 55210 are provided. Methods for preparing A89271 factors B and F by culturing the blue-green alga Hapalosiphon hibernicus ATCC 55225 and a biologically pure culture of this alga are also provided. Further provided are methods and compositions for the inhibition of fungal growth and the treatment of susceptible neoplasms.