Novel ramoplanin derivatives are disclosed. These ramoplanin derivatives exhibit antibacterial activity. As the compounds of the subject invention exhibit potent activities against gram positive bacteria, they are useful antimicrobial agents. Methods of synthesis and of use of the compounds are also disclosed.
divergent synthesis of β-lactams and α-aminoacidderivatives with isothiourea (ITU) catalysis by switching solvents was developed. The stereospecific Mannich reaction occurring between imine and C(1)-ammonium enolate generated zwitterionic intermediates, which underwent intramolecular lactamization and afforded β-lactam derivatives when DCM and CH3CN were used as solvents. However, when EtOH was used as
Design and synthesis of dinucleotide 5′-triphosphates with expanded functionality
作者:Tatiana V. Abramova、Svetlana V. Vasileva、Ludmila S. Koroleva、Nina S. Kasatkina、Vladimir N. Silnikov
DOI:10.1016/j.bmc.2008.09.029
日期:2008.10
We propose the new approach to the synthesis of 5 '-triphosphate derivatives of natural and modified dinucleotides with expanded functionality. Our strategy includes the combination of the solution phase synthesis of necessary dimers using the wide range of nucleic acids chemistry methods and the subsequent introduction of the triphosphate residue. A number of the new potential substrates for the template dependent synthesis of nucleic acids with expanded functionality are obtained, namely, 5 '-triphosphates of dinucleotides containing the functionally active groups in heterocyclic bases, in carbohydrate -phosphate backbone, and the groups mimicking the residues of natural amino acids. The abilities of the proposed synthetic route are also demonstrated by the synthesis of 5 '-triphosphates of dinucleotides with modified carbohydrate-phosphate backbone. (C) 2008 Elsevier Ltd. All rights reserved.
[EN] RAMOPLANIN DERIVATIVES POSSESSING ANTIBACTERIAL ACTIVITY<br/>[FR] DERIVES DE LA RAMOPLANINE PRESENTANT UNE ACTIVITE ANTIBACTERIENNE
申请人:VICURON PHARM INC
公开号:WO2007001335A2
公开(公告)日:2007-01-04
[EN] Novel ramoplanin derivatives are disclosed. These ramoplanin derivatives exhibit antibacterial activity. As the compounds of the subject invention exhibit potent activities against gram positive bacteria, they are useful antimicrobial agents. Methods of synthesis and of use of the compounds are also disclosed. [FR] L'invention porte sur de nouveaux dérivés de la ramoplanine qui présentent une activité antibactérienne. Du fait que les composés de cette invention présentent une puissante activité contre les bactéries Gram positif, ils sont utiles comme agents antimicrobiens. L'invention porte également sur des procédés de synthèse et d'utilisation de ces composés.