Activated carbon/Brønsted acid-promoted aerobic benzylic oxidation under “on-water” condition: Green and efficient synthesis of 3-benzoylquinoxalinones as potent tubulin inhibitors
摘要:
Green chemistry is becoming the favored approach to preparing drug molecules in pharmaceutical industry. Herein, we developed a clean and efficient method to synthesize 3-benzoylquinoxalines via activated carbon promoted aerobic benzylic oxidation under "on-water" condition. Moreover, biological studies with this class of compounds reveal an antiproliferative profile. Further structure modifications are performed and the investigations exhibited that the most active 12a could inhibit the microtubule polymerization by binding to tubulin and thus induce multipolar mitosis, G2/M phase arrest, and apoptosis of cancer cells, In addition, molecular docking studies allow the rationalization of the pharmacodynamic properties observed. Our systematic studies provide not only guidance for applications of O-2/AC/H2O system, but also a new scaffold targeting tubulin for antitumor agent discovery. (C) 2019 Published by Elsevier Masson SAS.
NOVEL COMPOUND HAVING SKIN-WHITENING, ANTI-OXIDIZING AND PPAR ACTIVITIES AND MEDICAL USE THEREFOR
申请人:Chung Hae Young
公开号:US20140023603A1
公开(公告)日:2014-01-23
Provided are a novel compound having skin-whitening, anti-oxidizing and PPAR activities and a medical use thereof, and the compound has skin-whitening activities for the suppression of tyrosinase, and accordingly, is useful for use in skin-whitening pharmaceutical composition or cosmetic products; has anti-oxidant activities, and accordingly, is useful for the prevention and treatment of skin-aging; and has PPAR activities, and in particular, PPARα and PPARγ activities, and accordingly, is useful for use in pharmaceutical compositions or health foods which are effective for the prevention and treatment of obesity, metabolic disease, or cardiovascular disease.
Synthesis and stereochemistry of 1,4-diazabicyclo[4,3,0]nonane-2,5,9-triones
作者:Michael R. Harnden
DOI:10.1039/j39670002341
日期:——
1,4-Diazabicyclo[4,3,0]nonane-2,5,9-triones have been prepared by two synthetic routes. The first (Scheme 1) involves cyclisation of α-aminoacyl glutamic acids to 3,6-dioxo-2-piperazinepropionic acids, which undergo a second cyclisation on refluxing with an acid anhydride. In the second (Scheme 2) the bicyclic system is obtained by direct cyclisation of α-acetamidoacyl glutamic acids. N.m.r. studies
NOVEL COMPOUND HAVING SKIN-WHITENING, ANTI-OXIDIZING AND PPAR ACTIVITIES AND MEDICAL USE THEREOF
申请人:Pusan National University Industry-University Cooperation Foundation
公开号:US20160102065A1
公开(公告)日:2016-04-14
Provided are a novel compound having skin-whitening, anti-oxidizing and PPAR activities and a medical use thereof, and the compound has skin-whitening activities for the suppression of tyrosinase, and accordingly, is useful for use in skin-whitening pharmaceutical composition or cosmetic products; has anti-oxidant activities, and accordingly, is useful for the prevention and treatment of skin-aging; and has PPAR activities, and in particular, PPARα and PPARγ activities, and accordingly, is useful for use in pharmaceutical compositions or health foods which are effective for the prevention and treatment of obesity, metabolic disease, or cardiovascular disease.