Brønsted acidic ionic liquids catalyzed the preparation of 13-aryl-5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraones and 3,4-dihydro-1H-benzo[b]xanthene-1,6,11(2H,12H)-triones
申请人:Centro Atlantico del Medicamento S.A (Ceamed, S.A)
公开号:EP2690094A1
公开(公告)日:2014-01-29
A compound having the formula (I):
for use in treating disease; a composition comprising said fused quinonic compound of formula (I) and at least one pharmaceutically acceptable carrier; as well as a method of modulating a Janus Kinase-Signal Transduction and Activators of Transcription (JAK-STAT) pathway. The activation of a JAK-STAT pathway is associated with several disease states such as immunological and inflammatory diseases, hyperproliferative disorders including cancer, and myeloproliferative diseases.
A clean, one‐pot and three‐component synthesis of new dibenzo[a,i]xanthene‐diones derivatives by cyclo‐condensation reaction of 2‐hydroxynaphthalene‐1,4‐dione, aromatic aldehydes and dimedone or 2‐naphthol in aqueous media is reported. J. Heterocyclic Chem., (2010).
Efficient one-pot three-component synthesis of 3,4-dihydro-12-phenyl-2H-benzo[b] xanthene-1,6,11(12H)-trione derivatives in ionic liquid
作者:Baixiang Du、Gan Cai、Bo Zhao、Xiangxue Meng、Xiangshan Wang、Yuling Li
DOI:10.1007/s11164-012-0688-5
日期:2013.3
A series of 3,4-dihydro-12-phenyl-2H-benzo[b]xanthene-1,6,11(12H)-trione derivatives have been synthesized in high yields in the presence of ionic liquid [bmim+]Br−. The reaction work-up is simple and the ionic liquid can be easily separated from the product and reused.
Novel benzo[<i>b</i>]xanthene derivatives: Bismuth(III) triflate‐catalyzed one‐pot synthesis, characterization, and acetylcholinesterase, glutathione S‐transferase, and butyrylcholinesterase inhibitory properties
作者:Kadir Turhan、Begüm Pektaş、Fikret Türkan、Fatma T. Tuğcu、Zuhal Turgut、Parham Taslimi、Halide S. Karaman、Ilhami Gulcin
DOI:10.1002/ardp.202000030
日期:2020.8
the benzo[b]xanthene derivatives on AChE, BChE, and GST were found at the millimolar level. The best inhibitor for GST is compound 4a (31.18 ± 6.13 mM), for AChE, it is compound 4d (28.16 ± 3.46 mM), and for BChE, it is compound 4f (36.24 ± 3.19 mM). Compound 4a inhibited the dimerization of GST subunits, and compounds 4d and 4f directly inhibited the catalytic activity by interacting with the catalytic