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.
Catalyst- and solvent-free regioselective ring opening of aziridines with amines: application in the gram-scale synthesis of the α,β-diamino propionic derivative, aspergillomarasmine A
作者:Xing Lin、Dajun Zhang、Jing Li、Lei Zhang
DOI:10.1039/d3ob00722g
日期:——
A green and efficient approach for synthesizing α,β-diamino propionic derivatives was developed through the ring opening of α-C-alkyloxycarbonyl aziridine. This method features catalyst- and solvent-free conditions, high regioselectivity, and wide substrate scope including solid amines, and realizes the gram-scale synthesis of aspergillomarasmine A.
Enantiospecific synthesis of (R)-2-carboxy-4-(3-phosphonopropyl)-piperazine [(R)-CPP] and (S)-3-(6-acetylnaphthalen-2-ylamino)-2-aminopropanoic acid [(S)-Anap] via an improved strategy: Ring opening of chiral aziridine
作者:Xing Lin、Jing Li、Chang-Zhi Dong、Lei Zhang
DOI:10.1016/j.tet.2024.134111
日期:2024.8
The chirality of CPP, a prominent -methyl--aspartate (NMDA) antagonist, and Anap, a notable genetically encoded fluorescent unnatural amino acid, have a significantly influence on their biological activities. Enantiospecific synthesis of CPP and Anap has been achieved through an improved strategy of ring opening of chiral aziridine, accomplished in 6 steps with a total yield of 50 % for CPP and in