Novel glycopeptide antibiotic derivatives. These derivatives are represented by the formula (aglycon part of glycopeptide antibiotic derivative)-(Sac-NH)—R
A
[wherein (aglycon part of glycopeptide antibiotic derivative) is the part formed by removing the sugar part from a known glycopeptide antibiotic derivative; (Sac-NH) part is an amino sugar part or a sugar chain part containing an amino sugar; and R
A
represents, e.g., the formula —X
1
—Ar
1
—X
2
—Y—X
3
—Ar
2
(wherein X
1
, X
2
, and X
3
each represents 1) a single bond or 2) a heteroatom or heteroatom-containing group selected from the group consisting of —N═, ═N—, —NR
1
—, —O—, etc.; Y represents —NR
2
CO— or —CONR
2
— (wherein R
2
represents hydrogen or lower alkyl), etc.)]. These derivatives have antibacterial activity against vancomycin-resistant bacteria.
US8778874B2
申请人:——
公开号:US8778874B2
公开(公告)日:2014-07-15
Synthesis and Biological Evaluation of Carvacrol-Based Derivatives as Dual Inhibitors of H. pylori Strains and AGS Cell Proliferation
作者:Francesca Sisto、Simone Carradori、Paolo Guglielmi、Carmen Beatrice Traversi、Mattia Spano、Anatoly P. Sobolev、Daniela Secci、Maria Carmela Di Marcantonio、Entela Haloci、Rossella Grande、Gabriella Mincione
DOI:10.3390/ph13110405
日期:——
enhancement of the inhibitoryactivity up to MIC values of 8–16 µg/mL. The most interesting compounds exhibiting the lowest MIC/MBC activity against H. pylori (among others, compounds 16 and 39 endowed with MIC/MBC values ranging between 2/2 to 32/32 µg/mL against all the evaluated strains) were also assayed for their ability to reduce AGS cell growth with respect to 5-Fluorouracil. Some derivatives can be regarded