1700-29-4Relevant articles and documents
Synthesis and biological evaluation of a D-ring-contracted analogue of lamellarin D
Colligs, Vanessa,Hansen, Steven Peter,Imbri, Dennis,Seo, Ean-Jeong,Kadioglu, Onat,Efferth, Thomas,Opatz, Till
, p. 6137 - 6148 (2017)
A D-ring contracted analogue of the strongly cytotoxic marine pyrrole alkaloid lamellarin D was synthesized and investigated for its antiproliferative action towards a wild type and a multidrug resistant (MDR) cancer cell line. The compound was found to inhibit tumor cell growth at submicromolar concentrations and showed a lower relative resistance in the MDR cell line than the antitumor drug camptothecin to which lamellarin D shows cross resistance and with which lamellarin D shares the same binding site.
AMIDE DERIVATIVES COMPRISING HETEROCYCLOALKYL RING
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Paragraph 0295-0297, (2020/05/20)
PROBLEM TO BE SOLVED: To provide compounds or pharmacologically acceptable salts thereof that have excellent EP300 and/or CREBBP histone acetyltransferase inhibitory activity. SOLUTION: The invention provides compounds represented by the formula (1) in the figure or pharmacologically acceptable salts thereof. (In the formula (1), ring Q1, ring Q2, ring Q3, X and L are as defined in the specification.) SELECTED DRAWING: None COPYRIGHT: (C)2020,JPO&INPIT
Facile and Divergent Synthesis of Lamellarins and Lactam-Containing Derivatives with Improved Drug Likeness and Biological Activities
Theppawong, Atiruj,Ploypradith, Poonsakdi,Chuawong, Pitak,Ruchirawat, Somsak,Chittchang, Montakarn
, p. 2631 - 2650 (2016/02/09)
With the goal to improve the aqueous solubility of lamellarins, the lactone ring in their skeleton was replaced with a lactam moiety in azalamellarins. However, the reported synthetic route produced such derivatives in very low yields. Hence, this study focused on developing an efficient simplified total synthetic scheme that could furnish both azalamellarins and the parent lamellarins from the same pyrrole ester intermediates. Subsequent comparative profiling revealed that the introduced lactone-to-lactam replacement rendered these molecules less lipophilic, whereas their cancer cytotoxicity remained equipotent to that of the parent compounds. Interestingly, their inhibitory activity was significantly enhanced towards the multifaceted GSK-3β enzyme. Our results clearly demonstrate the therapeutic potential of this promising class of marine-derived natural products and justify their further development, especially into anticancer agents.