Synthesis of 1,3-thiazine-2,4-diones with potential anticancer activity
摘要:
2-Amino-1,3-thiazin-4-ones were subjected to acetylation followed by mild acid hydrolysis to give compounds containing the 1,3-thiazine-2,4-dione core. The potential of these S,N-containing heterocycles as antitumor agents against human cancer cell lines, among other types, was evaluated. The results show that phenyl- and naphthyl-substituted thiazinediones presented selective antitumoral activity against leukemia cells. These compounds caused cell death with DNA fragmentation and the mechanism of action seems to involve caspase cascade activation, imbalance in intracellular Ca2+ and mitochondrial metabolism, and/or endoplasmic reticulum stress. (C) 2013 Elsevier Masson SAS. All rights reserved.
Synthesis of 1,3-thiazine-2,4-diones with potential anticancer activity
摘要:
2-Amino-1,3-thiazin-4-ones were subjected to acetylation followed by mild acid hydrolysis to give compounds containing the 1,3-thiazine-2,4-dione core. The potential of these S,N-containing heterocycles as antitumor agents against human cancer cell lines, among other types, was evaluated. The results show that phenyl- and naphthyl-substituted thiazinediones presented selective antitumoral activity against leukemia cells. These compounds caused cell death with DNA fragmentation and the mechanism of action seems to involve caspase cascade activation, imbalance in intracellular Ca2+ and mitochondrial metabolism, and/or endoplasmic reticulum stress. (C) 2013 Elsevier Masson SAS. All rights reserved.
Synthesis of allylic thiocyanates and novel 1,3-thiazin-4-ones from 2-(bromomethyl)alkenoates and S-nucleophiles in aqueous medium
作者:Marcus M. Sá、Luciano Fernandes、Misael Ferreira、Adailton J. Bortoluzzi
DOI:10.1016/j.tetlet.2007.12.029
日期:2008.2
Allylic thiocyanates and novel heterocycles containing the 1,3-thiazin-4-one core are easily obtained in high yields and mild conditions by nucleophilic displacement of 2-(bromomethyl)alkenoates (derived from Morita–Baylis–Hillman adducts) with sulphur-centred nucleophiles in aqueous acetone at 25 °C. Treatment of allylic bromides with NaSCN gave the corresponding (Z)-2-(thiocyanomethyl)alkenoates