Syntheses of C12,N13 Heterocyclic Bridged Fused Indenopyrrolocarbazoles
作者:Ted L. Underiner、John P. Mallamo、Jasbir Singh
DOI:10.1021/jo0108360
日期:2002.5.1
Tandem alkylation/cyclization of indenopyrrolocarbazole 4a, a C12 carbon analogue of indolocarbazole K252c, was carried out by general solid-phase and solution-phase methods. Alkylation of fused pyrroloindenylcarbazole 4a derivatives with appropriate monoacetals of diketones afforded the corresponding C12-substituted acetal alcohols. Acid-catalyzed cyclization of these adducts yielded C12,N13-bridged
Antrimycin Dv, a representative of the antrimycin and cirratiomycin classes of tuberculostatic heptapeptide anibiotics containing a tetrahydropyridazinecarboxylic acid unit, has been synthesized.
Total Synthesis of (±)-Marinopyrrole A and Its Library as Potential Antibiotic and Anticancer Agents
作者:Chunwei Cheng、Lili Pan、Yi Chen、Hao Song、Yong Qin、Rongshi Li
DOI:10.1021/cc100052j
日期:2010.7.12
The first total synthesis of marine naturalproduct, (±)-marinopyrrole A, has been accomplished via a nine-step synthesis in an overall yield of 30%. A small focused library based on marinopyrrole has been designed and synthesized. The scope of chemistry was investigated, and a robust chemistry suitable for library synthesis has been developed in the current study. The method that we have developed
Exploration of the Bis(thio)urea-Catalyzed Atropselective Synthesis of Marinopyrrole A
作者:Maciej Stodulski、Stefanie V. Kohlhepp、Gerhard Raabe、Tanja Gulder
DOI:10.1002/ejoc.201600147
日期:2016.4
The marinopyrroles are a new class of natural products with highly interesting biomedical and structural features. We herein provide a concise, nitrogen-protective-group-free synthesis of marinopyrrole A, constituting the as yet most efficient route. The presented studies elaborate a straightforward and mild chlorination protocol. Moreover, the first study towards the atropselectivesynthesis of marinopyrrole
marinopyrroles 是一类新的天然产物,具有非常有趣的生物医学和结构特征。我们在此提供了一种简洁的、无氮保护基团的 marinopyrrole A 合成方法,构成了迄今为止最有效的路线。所提出的研究阐述了一个简单而温和的氯化方案。此外,还介绍了使用手性 C2 对称双硫脲催化剂阻滞选择性合成 marinopyrrole A 的第一项研究。
[EN] (±)-MARINOPYRROLE A AND SYNTHESIZED DERIVATIVES THEREOF FOR RESISTING METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS<br/>[FR] (±)-MARINOPYRROLE A ET SES DÉRIVÉS SYNTHÉTIQUES POUR LUTTER CONTRE STAPHYLOCOCCUS AUREUS RÉSISTANT À LA MÉTHICILLINE
申请人:CHONGQING ZHIEN PHARMACEUTICAL CO LTD
公开号:WO2011103788A1
公开(公告)日:2011-09-01
Disclosed are synthesized derivatives of a natural product, (±)-marinopyrrole A, shown as structural formula I, which have inhibition activities on gram-positive bacteria, such as methicillin sensitive Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE), oxacilline-resistant Staphylococcus aureus (ORSA), methicillin-resistant Staphylococcus epidermidis (MRSE) and the like. Furthermore, the methods for preparing (±)-marinopyrrole A and the derivatives thereof are disclosed. According to the study of antibacterial activity in vitro, the synthesized derivatives of the natural product (±)-marinopyrrole A have excellent antibiotic activities on the gram-positive bacteria, such as methicillin sensitive Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE), oxacilline-resistant Staphylococcus aureus (ORSA), methicillin-resistant Staphylococcus epidermidis (MRSE) and the like, and have potential prospects in clinical application.