Dimerization Reactions in Sunlight. IV.1 Photodimerization of Thianaphthene-1,1-dioxide and its Substituted Derivatives and of 3-Benzylidene-6,7-benzophthalide
Phosphine-Catalyzed Domino Reaction of Thioaurones and Allenoate: Synthesis of Benzothiophene-Fused Dioxabicyclo[3.3.1]nonane Derivatives
作者:Shanshan Ma、Aimin Yu、Lei Zhang、Xiangtai Meng
DOI:10.1021/acs.joc.8b00145
日期:2018.5.18
The reaction of thioaurone derivatives with allenoate catalyzed by tris(4-methoxyphenyl)phosphane (P(4-MeOC6H4)3) resulted in a domino annulation reaction to produce a benzothiophene-fused bridged bicyclic ring, with 40–91% yields. The advantages of the methodology include diastereoselective formation of a bridged bicyclic ring in a single step, very mild reaction conditions, and success resulting
三(4-甲氧基苯基)膦(P(4-MeOC 6 H 4)3)催化的硫代金酮衍生物与脲基甲酸酯的反应导致多米诺环化反应,产生苯并噻吩稠合的桥连双环,产率为40-91% 。该方法的优点包括在一个步骤中非对映选择性地形成桥接的双环,非常温和的反应条件以及由于广泛的官能团而获得的成功。DFT计算对提出的机制进行了测试和支持。
Synthesis of Benzothiophene‐Fused Oxa[6.6.5]tricyclic Skeletons through a Cinchonidine‐ or NaOH‐Promoted Quadruple Domino Sequence
Two base‐promotedquadrupledomino reactions between thioaurones and allylic phosphonium salts have been developed to synthesize benzothiophene‐fusedoxa[6.6.5]tricyclicskeletons in moderate to good yields with excellent stereoselectivity and broad functional‐group tolerance. This is a simple and useful protocol for the rapid construction of the umbrella‐like oxa[6.6.5]tricyclicskeleton.
[EN] INHIBITORS OF ESTROGEN RECEPTOR ALPHA AND THEIR USE AS THERAPEUTICS FOR CANCER<br/>[FR] INHIBITEURS DU RÉCEPTEUR D'ŒSTROGÈNE ALPHA ET LEUR UTILISATION EN TANT QU'AGENTS THÉRAPEUTIQUES POUR LE CANCER
申请人:UNIV BRITISH COLUMBIA
公开号:WO2016165007A1
公开(公告)日:2016-10-20
This invention provides of compounds having structures of Formula A, uses of these compounds for treatment of various indications, including breast cancer, as well as methods of treatment involving these compounds.
Synthesis, molecular modeling and biological evaluation of new benzo[4,5]thieno[3,2-b]pyran derivatives as topoisomerase I-DNA binary complex poisons
作者:Eman M. Ahmed、Nadia A. Khalil、Ashraf F. Zaher、Shimaa M. Alhamaky、Mona S. El-Zoghbi
DOI:10.1016/j.bioorg.2021.104915
日期:2021.7
A series of new benzo[b]thiophenes 2a-f and benzo[4,5]thieno[3,2-b]pyran derivatives 3a-f and 4a-f were synthesized and their structures were confirmed by elemental analyses and spectral data. All synthesized compounds were evaluated by the National Cancer Institute (NCI, USA) against 60 human tumor cell lines. Compounds 3a-f and 4a-f showed potent cytotoxic effects in one dose assay with mean growth
New benzothienopyran and benzothienopyranopyrimidine derivatives as topoisomerase I inhibitors: Design, synthesis, anticancer screening, apoptosis induction and molecular modeling studies
作者:Nadia A. Khalil、Eman M. Ahmed、Ashraf F. Zaher、Shimaa M. Alhamaky、Nada Osama、Mona S. El-Zoghbi
DOI:10.1016/j.bioorg.2023.106638
日期:2023.8
benzothienopyranopyrimidine derivatives were synthesized based on the structural requirements of topoisomerase I inhibitors. All target compounds exhibited strong cytotoxic activity with GI50 range of 70.62% - 87.29% in one dose NCI (USA) screening against 60 human tumor cell lines. Among the tested derivatives, eight compounds namely 4d, 4e, 4f, 5b, 5e, 6b, 6d, and 6f demonstrated broad spectrum and potent anticancer
根据拓扑异构酶 I 抑制剂的结构要求,合成了新的苯并噻吩并吡喃和苯并噻吩并吡喃并嘧啶衍生物。在针对 60 种人类肿瘤细胞系的一剂 NCI(美国)筛选中,所有目标化合物都表现出很强的细胞毒活性,GI 50范围为 70.62% - 87.29%。在测试的衍生物中,八种化合物即4d、4e、4f、5b、5e、6b、6d和6f在针对所有测试组的五剂量筛选中显示出广谱和有效的抗癌功效。后一种化合物的 DNA 松弛测定表明4d、5b和6f表现出优异的抑制活性,IC 为50与茚并异喹啉参考药物相比,范围为 2.553 - 4.495 µM (IC 50 = 3.911±0.21 µM)。此外,使用 DNA 切口试验研究了最活跃的化合物作为拓扑异构酶毒物或催化抑制剂。化合物4d和6f被发现是潜在的 Topo I 毒物,而化合物5b是 Topo I 抑制剂。对最具活性的化合物4d 的细胞周期和细胞凋亡诱导进行分析,发现