3-Hydroxyisoindolin-1-one derivates: Synthesis by palladium-catalyzed C H activation as BRD4 inhibitors against human acute myeloid leukemia (AML) cells
摘要:
Bromodomain protein 4 (BRD4) is a member of the bromodomain and extra-terminal domain (BET) protein family, which plays a key role in transcriptional regulation. Recent biological and pharmacological studies have enabled linking of the BET bromodomains with diseases, including inflammation and cancer, suggesting that bromodomains are druggable targets. In this study, we made further structural modifications of our previously reported BRD4 inhibitors, to develop new chemical scaffold 3-Hydroxyisoindolin-1-One. Then a series of compounds (10a-q) were synthesized via palladium-catalyzed C-H activation and BRD4-inhibitory activities and anti-proliferative effects of these compounds were evaluated. Compound 10e exhibited excellent BRD4-inhibitory activity with IC50 value of 80 nM and anti-proliferation potency with IC50 value of 365 nM in HL-60 (human promyelocytic leukemia) cancer cell lines. We have demonstrated compound 10e modulated the intrinsic apoptotic pathway. In conclusion, these results suggested that compound 10e could be utilized as a BRD4 inhibitor for further leukemia treatment.
Inhibition of Glyoxalase I: The First Low-Nanomolar Tight-Binding Inhibitors
作者:Swati S. More、Robert Vince
DOI:10.1021/jm900382u
日期:2009.8.13
-based glyoxalaseIinhibitors culminated in the discovery of the first single-digit nanomolar inhibitor. This study makes available key information about possible means to address the issues of metabolic instability, low potency, and synthetic complexicity that have plagued the area of glyoxalaseI inhibition. Knowledge garnered from this study has implications in the design of inhibitors with higher
Design, synthesis and utilization of a novel coupling reagent for the preparation of O-alkyl hydroxamic acids
作者:Nagnnath D. Kokare、Rahul R. Nagawade、Vipul P. Rane、Devanand B. Shinde
DOI:10.1016/j.tetlet.2007.04.058
日期:2007.6
An efficient novel reagent, phosphoric acid diethyl ester 2-phenyl-benzimidazol-1-yl ester, was designed, and synthesized and its applicability was demonstrated for the preparation of O-alkyl hydroxamic acids. The O-alkyl hydroxamic acids of N-protectedaminoacids were also synthesized. The enantiomeric purity of the synthesized compounds were measured using chiral HPLC and the degree of racemization
Design, synthesis, and biological evaluation of aryl N-methoxyamide derivatives as GPR119 agonists
作者:Yoon Kyung Jang、Kyu Myung Lee、Kwan-Young Jung、Seung Kyu Kang、Suvarna H. Pagire、Jun Mi Lee、Haushabhau S. Pagire、Kwang Rok Kim、Myung Ae Bae、Hohjai Lee、Sang Dal Rhee、Jin Hee Ahn
DOI:10.1016/j.bmcl.2017.06.032
日期:2017.8
A series of N-methoxyamide derivatives was identified and evaluated as GPR119 agonists. Several N-methoxyamides with thienopyrimidine and pyridine scaffolds showed potent GPR119 agonistic activities. Among them, compound 9c displayed good in vitro activity and potency. Moreover, compound 9c lowered glucose excursion in mice in an oral glucose tolerance test and increased GLP-1 secretion in intestinal
A Cascade Dehydrogenative Cross-Coupling/Annulation Reaction of Benzamides with β-Keto Esters for the Synthesis of Isoquinolinone Derivatives
作者:Guo-Dong Xu、Zhi-Zhen Huang
DOI:10.1021/acs.orglett.7b02978
日期:2017.12.1
A novel cascade DCC/annulation reaction of N-alkoxybenzamides with β-keto esters has been developed for the synthesis of isoquinolinone derivatives under palladiumcatalysis. A plausible mechanism involving α-C(sp2)–H activation and a Pd(II)/Pd(IV) catalytic cycle is also proposed.
Visible-light-promoted N–H functionalization of O-substituted hydroxamic acid with diazo esters
作者:Shuangshuang Xia、Yongchan Jian、Liwen Zhang、Cheng Zhang、Yuanyuan An、Yubin Wang
DOI:10.1039/d3ra02407e
日期:——
Herein we report an N–H functionalization of O-substituted hydroxamic acid with diazo esters under blue LED irradiation conditions. The present transformations could be performed efficiently under mild conditions without use of catalyst, additive and N2 atmosphere. Interestingly, when THF and 1,4-dioxane were employed as the reaction solvents, an active oxonium ylide involved three-component reaction
在此,我们报道了在蓝色 LED 照射条件下 O-取代异羟肟酸与重氮酯的 N-H 官能化。在不使用催化剂、添加剂和 N 2气氛的情况下,本转化可以在温和条件下有效地进行。有趣的是,当使用 THF 和 1,4-二恶烷作为反应溶剂时,活性氧鎓叶立德分别涉及三组分反应和卡宾物种向异羟肟酸酯中的 N-H 插入。