Oxazepines and Thiazepines, XXV: Chemical Transformations of 2,3-Dihydro-1,5-benzothiazepin-4(5H)-ones
作者:Albert Lévai
DOI:10.1002/ardp.19923251108
日期:——
2,3‐Dihydro‐1,5‐benzothiazepine‐4(5H)‐thiones 13‐22 were prepared by the reaction of the appropriate 2,3‐dihydro‐1,5‐benzothiazepin‐4(5H)‐ones with Lawesson's reagent. N‐Acyl (23‐25) and N‐alkyl (26‐28) derivatives have also been synthesized. Oxidation with 3‐chloroperoxybenzoic acid afforded sulfoxides 29‐32, and sulfones 33‐40 were obtained by using H2O2 as an oxidizing agent.
Über die Umlagerung von Benzo[<i>b</i>]-1, 4-thiazepinen und 1, 4-Thiazepinen
作者:Max Wilhelm、Paul Schmidt
DOI:10.1002/hlca.19700530717
日期:——
been investigated. 2-Phenyl-4-methylthio-benzo [b]-1, 4-thiazepine (3) and 2-phenyl-benzo [b]-1, 4-thiazepine-4 (5H)-thione (2) extrude sulfur under the catalytic influence of bases and rearrange into 2-methylthio-4-phenyl-quinoline (4) and 4-phenyl-thiocarbostyril (6) respectively. Under the same conditions, 2-phenyl-4-methylthio-2, 3-dihydro-benzo [b]-1, 4-thiazepine (11) rearranges to 2-styryl-benzothiazine
已经研究了在各种反应条件下不同取代的1,4-硫氮杂的重排。2-苯基-4-甲硫基-苯并[ b ] -1,4-噻氮平(3)和2-苯基-苯并[ b ] -1,4-硫氮杂-4(5H)-硫酮(2)在60℃下挤出硫。碱的催化作用,并分别重排为2-甲硫基-4-苯基-喹啉(4)和4-苯基-硫代咔唑(6)。在相同条件下,2-苯基-4-甲硫基-2,3-二氢-苯并[ b ] -1,4-噻氮平(11)重排为2-苯乙烯基-苯并噻嗪(12),而二氧化物18显示没有重新排列的趋势。通过用多磷酸处理,可以将2,7-二苯基-六氢-1,4-硫氮杂-5-酮(19)转化为2-苯乙烯基-5-苯基-2-噻唑啉(20)。讨论了这些重排的可能机制。
2-Substituted 1,5-benzothiazepine-based HDAC inhibitors exert anticancer activities on human solid and acute myeloid leukemia cell lines
作者:Simona De Vita、Sara Meninno、Lucia Capasso、Ester Colarusso、Maria Giovanna Chini、Gianluigi Lauro、Romolo Rinaldi、Annalisa De Cicco、Veronica Sian、Stefania Terracciano、Angela Nebbioso、Alessandra Lattanzi、Giuseppe Bifulco
DOI:10.1016/j.bmc.2023.117444
日期:2023.10
amenable to generating both racemic and enantioenriched benzothiazepine-based derivatives. The obtained compounds showed potent HDAC inhibitory activity, especially those containing the sulphone moiety, endowed with IC50 in the nanomolar range. In addition, in vitro outcomes of our synthesized compounds demonstrated a cytotoxic effect on U937 and HCT116 cell lines and an arrest in the G2/M phase (13 ≤ IC50 ≤ 18 µM)
Mills; Whitworth, Journal of the Chemical Society, 1927, p. 2749
作者:Mills、Whitworth
DOI:——
日期:——
Oxazepines and Thiazepines, 36. Diastereoselective Sulfoxidation of 2,3-Dihydro-1,5-benzothiazepin-4(5H)-ones by Dimethyldioxirane
作者:Tamás Patonay、Waldemar Adam、József Jekö、Katalin E. Kövér、Albert Lévai、Márta Németh、Karl Peters
DOI:10.3987/com-98-8353
日期:——
The highly chemoselective dimethyldioxirane oxidation of 2-substituted 2,3-dihydro-1,5-benzothiazepin-4(5H)-one (1) allows the synthesis of the corresponding sulfoxides (2) or sulfones (3) in good yields. The relative stereochemistry of the sulfoxides has been unequivocally determined by X-Ray and NMR methods. The high trans diastereoselectivity can be explained on the basis of steric control.