achieved starting from D-cysteine. The imide bond between thiazoline and the pyrrolinone part was constructed by coupling reaction of sodium salt of pyrrolinone with cysteine active ester or by photoreaction with diketene. The hydroxymethyl group attached on the carbon adjacent to C-2 of the thiazoline ring, was introduced by aldol condensation posterior to the thiazoline ring formation. The thiazole part
Isomalyngamide A, A-1 and their analogs suppress cancer cell migration in vitro
作者:Tzu Ting Chang、Shivaji V. More、I.-Hsuan Lu、Jui-Ching Hsu、Ting-Ju Chen、Ya Ching Jen、Chung-Kuang Lu、Wen-Shan Li
DOI:10.1016/j.ejmech.2011.05.049
日期:2011.9
Isomalyngamide A (1) and A-1 (2) were isolated from the Taiwanese Lyngbya majuscule and the latter structure was elucidated by a combination of NMR spectroscopic analysis and HRESIMS measurement. We report the isolation of isomalyngamide A (1), discovery of isomalyngamide A-1 (2) and their synthetic analogs (3-9), which are further demonstrated to have therapeutic potential against tumor cell migration at the level of nanomolar to micromolar ranges, perhaps, by inactivating the expression of p-FAK, FAK, p-Akt and Akt through beta 1 integrin-mediated antimetastatic pathway. (C) 2011 Elsevier Masson SAS. All rights reserved.