Orientation in acylation reactions of 2,2-dimethyl-2H-chromenes was studied. Five acetylchromenes were obtained with two methods and six formylchromenes were obtained with a third method. Demethylation of four acyl-methoxy-substituted chromenes gave the corresponding acylchromenols. 2,2-Dimethyl-2H-chromene-6-carboxylic acid (anofinic acid) was also obtained by oxidation of 6-formylchromene.
Discovery of a Novel Stilbene Derivative as a Microtubule Targeting Agent Capable of Inducing Cell Ferroptosis
作者:Jingwei Zhou、Yanqing Pang、Weiwei Zhang、Fen OuYang、Haibiao Lin、Xingshu Li、Jun Yan
DOI:10.1021/acs.jmedchem.1c01775
日期:2022.3.24
clinically effective chemotherapies for cancer treatment but might be limited by the acquired or intrinsic resistance of cancer cells to apoptosis. The vulnerability of therapy-resistant cancers to ferroptosis provides an alternative way to overcome drug resistance. In this study, on the basis of the MTAs obtained in our previous studies, a series of MTAs were synthesized, and detailed structure–activity
Verbindungen der Formel I,
worin R1, R2, R3, R3a, R3b, R4, R5, R6, R7 und R8 die in der Beschreibung angegebenen Bedeutungen haben, sind neue wirksame Bronchialtherapeutika.
式 I. 的化合物
其中 R1、R2、R3、R3a、R3b、R4、R5、R6、R7 和 R8 具有描述中给出的含义,是新型有效的支气管治疗药物。
Synthesis, in vitro and in vivo evaluation of new hybrids of millepachine and phenstatin as potent tubulin polymerization inhibitors
作者:Baijiao An、Shun Zhang、Jun Yan、Ling Huang、Xingshu Li
DOI:10.1039/c6ob02507b
日期:——
In this paper, a series of millepachine derivatives were synthesized and evaluated as tubulinpolymerizationinhibitors. The optimal compound 5i, (3-hydroxy-4-methoxyphenyl)(5-methoxy-2,2-dimethyl-2H-chromen-8-yl)methanone, displayed the highest cytotoxicity toward a series of cancer cells (ranging from 18 to 45 nM of IC50). Further investigation revealed that 5i significantly repressed the multidrug