摘要:
Biotransformation products of a fermentation with Streptomyces sp., (Merck Culture Collection MA7165) ATCC No. 55946 are potent antifungal agents. These products may be useful in the treatment of diseases caused by fungal pathogens such as Candida sp. and Cryptococcus neoformans.
摘要:
Natural products such as certain chaetochromins are described. These compounds are useful in the inhibition of HIV integrase, the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described.
摘要:
Natural products such as certain ermophilane sesquiterpenoids and derivatives thereof are described. These compounds are useful in the inhibition of HIV integrase, the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described. The fungal culture MF6254, Xylaria sp. (ATCC 74397) is also described and disclosed.
摘要:
Natural products such as certain chaetochromins are described. These compounds are useful in the inhibition of HIV integrase, the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described.
摘要:
Tissue cultures of cells from seed heads of Papaver bracteatum Lindl, Population Arya II, are grown in artificial nutrient media to produce thebaine which is then extracted therefrom. An example of an artificial nutrient medium used for the tissue culture is revised tobacco medium supplemented with 1% agar and 1ppm 2,4-dichlorophenoxyacetic acid.
摘要:
Biotransformation products of a fermentation with culture MA7074 are potent HIV protease inhibitors. These products are useful in the prevention or treatment of infection by HIV and in the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described.
摘要:
There is disclosed a dual compartment solid phase extraction cartridge comprising a container divided into a top volume and a bottom volume by a porous filter or frit, the top and bottom volumes having a quantity of sorbent. The cartridge is useful in the separation of components of a liquid and solid mixture.
摘要:
Described is a new enzyme, 31-O-desmethyl-FK-506 O-methyltransferase (FKMT) and its N-terminal amino acid sequence. This enzyme can specifically and preferentially methylate the C-31 hydroxy group in 31-O-desmethyl FK-506/FR-900506 and other 31-O-desmethyl analogs of FK-506/FR-900506 and related compounds such as 31-O-desmethyl immunomycin type molecules, also designated FK-520 and FR-900520 by Fujisawa. The enzyme can be isolated from a FK-506 producing microorganism Streptomyces sp. (Merck Culture Collection No. MA 6858) ATCC No. 55098. Employing the enzyme in its active form, supplemented with Mg.sup.+2 ion, in the presence of the methyl donor, S-adenosyl methionine (SAM), derivatives of 31-O-desmethyl FK-506, 31-O-desmethyl FK-520 and related 31-O-desmethyl compounds may be prepared.