Amides of de-acetylglucosaminyl-deoxy teicoplanin active against highly glycopeptide-resistant enterococci. Synthesis and antibacterial activity.
作者:ADRIANO MALABARBA、ROMEO CIABATTI、JÜRGEN KETTENRING、PIETRO FERRARI、ROBERTO SCOTTI、BETH P. GOLDSTEIN、MAURIZIO DENARO
DOI:10.7164/antibiotics.47.1493
日期:——
Removal, by selectivereduction, of the acetylglucosamine from teicoplanin A2-2 (CTA/2) produced the 34-de(acetylglucosaminyl)-34-deoxy pseudoaglycone (II). This compound was more active in vitro than CTA/2 against coagulase-negative staphylococci (CNS). Amide derivatives obtained by condensation of the carboxyl group of II with primaryamines were particularly active against Streptococcus pyogenes
The present invention is directed to novel antibiotic A 40926 derivatives characterized by having a carboxy, (C1-C4)alkoxycarbonyl, aminocarbonyl, (Ci-C4)alkylaminocarbonyl, di(C1-C4)alkylaminocarbonyl or hydroxymethyl substituent on the N-acylaminoglucuronyl moiety and a hydroxy or a polyamine substituent in position 63 of the molecule.
The compounds of the invention show high in vitro activity against glycopeptide resistant Enterococci and Staplylococci.
本发明涉及新型抗生素 A 40926 衍生物,其特征是在 N-酰氨基葡萄糖醛酰基上具有羧基、(C1-C4)烷氧基羰基、氨基羰基、(Ci-C4)烷基氨基羰基、二(C1-C4)烷基氨基羰基或羟甲基取代基,在分子的第 63 位具有羟基或多胺取代基。
本发明的化合物对抗糖肽肠球菌和抗球菌具有很高的体外活性。
Synthesis and antibacterial activity of a series of basic amides of teicoplanin and deglucoteicoplanin with polyamines
作者:Adriano Malabarba、Romeo Ciabatti、Jurgen Kettenring、Roberto Scotti、Gianpaolo Candiani、Rosa Pallanza、Marisa Berti、Beth P. Goldstein
DOI:10.1021/jm00100a010
日期:1992.10
Basic carboxamides of teicoplanin A2 (CTA) and its aglycon (TD) are prepared by condensation of the 63-carboxyl function of these antibiotics with linear or branched polyamines. The antimicrobial activities of some of the resulting compounds were better than those of the unmodified antibiotics. The presence of more than one basic group in the amidic chain enhanced the in vitro activity of some TD-amides against Gram-negative bacteria; two of these derivatives were also effective in vivo against Escherichia coli septicemia in the mouse. Among the CTA derivatives, the amide with spermine showed some unexpected in vitro activity against Gram-negatives. Both CTA- and TD-amides with polyamines are very soluble in water over a wide range of pH and are very hydrophilic.
NEW SUBSTITUTED ALKYLAMIDE DERIVATIVES OF TEICOPLANIN