exhibit antiproliferative properties and have been proposed to operate via similar mechanisms, including direct genome targeting. Here, we report the chemical synthesis of marmycin A and the study of its cellular activity. The aromatic core was constructed by means of a one-pot multistep reaction comprising a regioselective Diels–Alder cycloaddition, and the complex sugar backbone was introduced through
蒽环类药物如多柔比星广泛用于治疗癌症。蒽醌相关的角环素也表现出抗增殖特性,并且已被提议通过类似的机制起作用,包括直接基因组靶向。在这里,我们报告了marmycin A 的化学合成及其细胞活性的研究。芳香核心是通过包含区域选择性 Diels-Alder 环加成的一锅多步反应构建的,并通过铜催化的 Ullmann 交叉偶联引入复杂的糖骨架,然后进行具有挑战性的 Friedel-Crafts 环化。值得注意的是,荧光显微镜显示马霉素 A 不靶向细胞核,而是在溶酶体中积累,从而促进细胞死亡,而与基因组靶向无关。此外,marmycin A 和溶酶体靶向剂青蒿琥酯的合成二聚体对侵袭性 MDA-MB-231 癌细胞系表现出协同活性。这些发现揭示了蒽醌衍生物在细胞中作用的难以捉摸的途径,指向了意想不到的生物学和治疗应用。
METHOD FOR PREPARING MARMYCIN A AND ANALOGUES THEREOF, AND ALSO USES THEREOF
申请人:Centre national de la recherche scientifique
公开号:US20170260210A1
公开(公告)日:2017-09-14
The present invention relates to a method for preparing marmycin A and analogues thereof, to novel marmycin A analogues, and also to the use of these compounds as an organelle marker and in pharmacy, in particular as antibiotics, anticancer agents and antimalarials.
[EN] METHOD FOR PREPARING MARMYCIN A AND ANALOGUES THEREOF, AND ALSO USES THEREOF<br/>[FR] PROCEDE DE PREPARATION DE LA MARMYCINE A ET DE SES ANALOGUES AINSI QUE LEURS UTILISATIONS
申请人:CENTRE NAT RECH SCIENT
公开号:WO2016034559A1
公开(公告)日:2016-03-10
La présente invention concerne un procédé de préparation de la marmycine A et de ses analogues, de nouveaux analogues de la marmycine A, ainsi que l'utilisation en tant que marqueur d'organites et en pharmacie de ces composés, notamment en tant qu'antibiotiques, anticancéreux et antipaludiques.
Enantioselective Diels-Alder Approach to C-3-Oxygenated Angucyclinones from (SS)-2-(p-Tolylsulfinyl)-1,4-naphthoquinone
作者:M. Carmen Carreño、Antonio Urbano、Claudio Di Vitta
quinones anti-6 and syn-7, which were obtained from the kinetic resolution of the racemic diene. In all cases, (SS)-(2-p-tolylsulfinyl)-1,4-naphthoquinone reacted from the less hindered face of the more reactive s-cis conformation, to form products in good enantiomeric excesses. Steric effects and torsional interactions in the corresponding approaches account for the observed pi-facial diastereoselectivities