Synthesis of Carbapenems Containing Peptidoglycan Mimetics and Inhibition of the Cross‐Linking Activity of a Transpeptidase of
<scp>l,d</scp>
Specificity
The carbapenem class of β‐lactams has been optimized against Gram‐negative bacteria producing extended‐spectrum β‐lactamases by introducing substituents at position C2. Carbapenems are currently investigated for the treatment of tuberculosis as these drugs are potent covalent inhibitors of l,d‐transpeptidases involved in mycobacterial cell wall assembly. The optimization of carbapenems for inactivation
A robust synthesis of N-glycolyl muramyl dipeptide via azidonitration/reduction
作者:Shuo Xing、James L. Gleason
DOI:10.1039/c4ob02147a
日期:——
Glycal etherification followed by azidonitration/reduction solves a difficult SN2 step in the synthesis of N-glycolyl muramyl dipeptide.
糖醛醚化后接着进行叠氮硝化/还原,解决了在合成N-糖氧基muramyl二肽中的一个困难SN2步骤。
Synthesis and Structure-activity Relationship of<i>N</i>-(Acyl)muramoyl-dipeptides
作者:Hiroyuki Okumura、Ichiro Azuma
DOI:10.1080/00021369.1983.10865714
日期:1983.4
A variety of N-(acyOmuramoyl-dipeptides were synthesized and their immunoadjuvant activities were examined on the induction of delayed-type hypersensitivity to N-acetyl-l-tyrosine-3- azobenzene-4′-arsonate in guinea pigs. It was found that introduction of acyl groups to the 2-amino group in muramoyl-l-valyl- or -l-seryl-d-isoglutamine reduced the activity with the increasing length of the acyl group, although all N-(acyl)muramoyl-l-alanyl-d-isoglutamines were active as an adjuvant. The results suggest that development of the adjuvant activity of N-(acyl)muramoyl- dipeptides is closely related to both the length of the acyl group and the bulkiness of the peptide moiety.
NOVEL MURAMYL PEPTIDE DERIVATIVE COMPOUND, SYNTHESIS AND USES THEREOF
申请人:BHARAT BIOTECH INTERNATIONAL LIMITED
公开号:US20180360957A1
公开(公告)日:2018-12-20
The invention relates to novel Muramyl Dipeptide (MDP) derivative compound of structural Formula-VIII, a process for synthesis, intermediates used in the synthesis and use thereof;
wherein R
1
and R
2
both are hydrogen; or R
1
is hydrogen and R
2
is alkyl or aryl; or R
1
is alkyl or aryl and R
2
is hydrogen; or R
1
and R
2
both are alkyl or aryl (same or different groups); wherein alkyl group constitute C1-C6 alkyl or higher (both linear and branched) with or without heteroatoms; and aryl group constitute phenyl, substituted phenyl, heteraryl, arylalkyl and polynuclear aromatics. These compounds possess excellent pharmacological properties, in particular immunomodulating properties for use as adjuvant in vaccine formulations. These compounds are, particularly useful as adjuvants in vaccines.
[EN] NOVEL MURAMYL PEPTIDE DERIVATIVE COMPOUND, SYNTHESIS AND USES THEREOF<br/>[FR] NOUVEAU COMPOSÉ DÉRIVÉ DE MURAMYLE, SYNTHÈSE ET UTILISATIONS ASSOCIÉES
申请人:BHARAT BIOTECH INT LTD
公开号:WO2017098529A1
公开(公告)日:2017-06-15
The invention relates to novel Muramyl Dipeptide (MDP) derivative compound of structural Formula-VIII, a process for synthesis, intermediates used in the synthesis and use thereof. R = alkyl (both linear and branched), aryl, substituted aryl, alkoxy alkyl Wherein, R can be both linear and branched alkyl, aryl, substituted aryl and alkoxy alkyl. These compounds possess excellent pharmacological properties, in particular immunomodulating properties for use as adjuvant in vaccine formulations. These compounds are, particularly useful as adjuvants in vaccines.