摘要:
The invention relates to anionic conjugates of glycosylated bacterial metabolites that may be used to mimic the structure and/or activity of the anionic bioactive molecules known as glycosaminoglycans (GAGs). The invention also relates to processes for the preparation of the conjugates. Such conjugates are useful in the prophylaxis and/or treatment of disease conditions and in particular chronic disease conditions such as inflammatory (including allergic) diseases, metastatic cancers and infection by pathogenic agents including bacteria, viruses or parasites.
摘要:
This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the present invention relates to compounds represented by formula (Ia) or their pharmacologically acceptable salts or solvates, or their diastereomer mixtures, antimicrobial agents comprising them, and a process for producing them.
摘要:
Compounds having antibacterial activity are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein Q1, Q2, Q3, R8 and R9 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
摘要:
This invention concerns compounds with the formula: in which: R1═OH or NH2; OR2, OR3, OR4 and OR5 are alcohol, ether, ester, carbonate, carbamate, sulphonate or sulphamate groups; and if R5═H if R2═R3═R4, then R2, R3 and R4≠H; if R2═H, then R3≠H and R4≠H; if R3═H, then R2≠H and R4≠H; if R4═H, then R2≠H and R3≠H; if R5≠H if R2=H, then R3≠H and R4≠H; if R3═H, then R2≠H and R4≠H; if R4═H, then R2≠H and R3≠H, their use as antibiotic agents and the process for synthesizing them.
摘要:
This invention relates to a compound of Formula 1A: or a pharmaceutically acceptable salt thereof; wherein R1 to R4, R7, R9 to R12 and Y are as defined herein. The invention further relates to pharmaceutical composition comprising said compound or a pharmaceutically acceptable salt thereof; and method of using same for reducing or reversing bacterial resistance to at least one aminoglycoside antibiotic.
摘要:
The present invention relates to a novel pharmacological treatment of bacterial infectious diseases in humans. Specifically the invention relates to the use of apramycin of formula (I) or apramycin derivatives to treat bacterial infectious diseases in humans. It is demonstrated that apramycin surprisingly does not have the expected high level of toxicity observed with related aminoglycoside antibiotics but actually is even significantly less toxic than compounds already used in human medicine such as gentamicin.
摘要:
This invention concerns compounds with the formula: in which: R1=OH or NH2; OR2, OR3, OR4 and OR5 are alcohol, ether, ester, carbonate, carbamate, sulphonate or sulphamate groups; and if R5=H if R2=R3=R4, then R2, R3 and R4≠H; if R2=H, then R3≠H and R4≠H; if R3=H, then R2≠H and R4≠H; if R4=H, then R2≠H and R3≠H; if R5≠H if R2=H, then R3≠H and R4≠H; if R3=H, then R2≠H and R4≠H; if R4=H, then R2≠H and R3≠H, their use as antibiotic agents and the process for synthesising them.
摘要:
Aminoglycoside-polyamines are disclosed along with methods of use thereof in displacement chromatography and as DNA-binding ligands. The aminoglycoside-polyamines are derivatives of carbohydrates, such as sugars, amino sugars, deoxysugars, glycosides, nucleosides and their substituted counterparts. The subject polyamines possess a group in place of at least one hydrogen atom of at least one hydroxyl group of the carbohydrate compound. In these compounds R1 is an alkyl group or an azaalkyl group, and R2 is a primary or secondary amino group.
摘要:
The present invention relates to novel methods of preparing a wide variety of spectinomycin analogs and biologically acceptable salts thereof. Further, the invention relates both to novel intermediates and novel products therein. The novel products are spectinomycin analogs which can be used for the same biological purposes as spectinomycin. The processes of the invention provide for novel intermediates that are versatile and highly reactive exocyclic enones.
摘要:
New antibiotic compounds, Fortimicin factors KG.sub.1, KG.sub.2 and KG.sub.3 are produced by fermentation of microorganisms belonging to the genus Micromonospora. The antibiotic compounds are accumulated in the culture liquor and are isolated therefrom.