CmnK–ACEGA docking model revealed that the glutamate α-hydrogen points toward the nicotinamide moiety. It provides evidence that the reaction is dependent on hydride transfer to form an imine intermediate, which is subsequently hydrolyzed by a water molecule to produce l-Dap. These findings modify the original proposed pathway and provide insights into l-Dap formation in the biosynthesis of other related
[EN] PROCESS FOR THE PREPARATION OF 2-[2-(2-AMINO-2-CARBOXY-ETHYLAMINO)-2-CARBOXY-ETHYLAMINO]-SUCCINIC ACID (AM-A) AND ANALOGS AND DERIVATIVES THEREOF<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION D'ACIDE 2-[2-(2-AMINO-2-CARBOXY-ÉTHYLAMINO)-2-CARBOXY-ÉTHYLAMINO]-SUCCINIQUE (AM-A) ET DES ANALOGUES ET DÉRIVÉS DE CELUI-CI
申请人:UNIV MCMASTER
公开号:WO2017070794A1
公开(公告)日:2017-05-04
The present application relates to processes for the preparation of the aspergillomarasmine A (AM-A) compound and analogs and derivatives thereof. The features of this process involves the use of a cyclic activated serine synthon in the construction of the poly-amino acid backbone. Also included are certain novel analogs of AM-A along with compositions comprising these compounds and uses thereof.
Synthesis of L-2,3-Diaminopropionic Acid, a Siderophore and Antibiotic Precursor
作者:Marek J. Kobylarz、Jason C. Grigg、Shin-ichi J. Takayama、Dushyant K. Rai、David E. Heinrichs、Michael E.P. Murphy
DOI:10.1016/j.chembiol.2013.12.011
日期:2014.3
L-2,3-diaminopropionic acid (L-Dap) is an amino acid that is a precursor of antibiotics and staphyloferrin B a siderophore produced byStaphylococcus aureus. SbnA and SbnB are encoded by the staphyloferrin B biosynthetic gene cluster and are implicated in L-Dap biosynthesis. We demonstrate here that SbnA uses PLP and substratesO-phospho-L-serine and L-glutamate to produce a metaboliteN-(1-amino-1-c
Total Synthesis of Aspergillomarasmine A and Related Compounds: A Sulfamidate Approach Enables Exploration of Structure-Activity Relationships
作者:Silvia A. Albu、Kalinka Koteva、Andrew M. King、Salma Al-Karmi、Gerard D. Wright、Alfredo Capretta
DOI:10.1002/anie.201606657
日期:2016.10.10
secondary metabolite aspergillomarasmine A (AMA) has recently been identified as an inhibitor of metallo‐β‐lactamases NDM‐1 and VIM‐2. Described herein is an efficient and practical route to AMA and its related compounds by a sulfamidate approach. In addition, a series of derivatives has been prepared and tested for biological activity in an effort to explore preliminary structure activity relationships.