A highly efficient, practical, and ligand-free palladium-catalyzed carbonylation of aryliodides with alkenylboronic acids has been developed. A variety of chalcones and α-branched enones were isolated in satisfactory to good yields with good substrate compatibilities under an ambient pressure of CO at room temperature. Moreover, the transformation proceeds well in the presence of a substoichiometric
开发了一种高效、实用且无配体的钯催化芳基碘与烯基硼酸的羰基化反应。在室温和 CO2 环境压力下,各种查尔酮和 α-支链烯酮的分离结果令人满意,产率良好,底物相容性好。此外,在存在亚化学计量量的碱的情况下,转化进行得很好。该策略作为后期功能化平台的优点已通过对源自雌酮和 3-苯基- 的复杂底物的修饰得到证明升-丙氨酸。
Synthesis of Renoprotective Chalcone Analogues That Protect Against Cisplatin-induced Cytotoxicity in LLC-PK1 Cells
作者:Noriko Yamabe、Dahae Lee、Heesu Lee、Myung Sook Shin、Gwi Seo Hwang、Ki Sung Kang、Jae Wook Lee
DOI:10.1002/bkcs.10984
日期:2016.11
Synthesis of apoptotic chalcone analogues in HepG2 human hepatocellular carcinoma cells
作者:Cheon-Soo Park、Yongchel Ahn、Dahae Lee、Sung Won Moon、Ki Hyun Kim、Noriko Yamabe、Gwi Seo Hwang、Hyuk Jai Jang、Heesu Lee、Ki Sung Kang、Jae Wook Lee
DOI:10.1016/j.bmcl.2015.10.093
日期:2015.12
Eight chalcone analogues were prepared and evaluated for their cytotoxic effects in human hepatoma HepG2 cells. Compound 5 had a potent cytotoxic effect. The percentage of apoptotic cells was significantly higher in compound 5-treated cells than in control cells. Exposure to compound 5 for 24 h induced cleavage of caspase-8 and -3, and poly (ADP-ribose) polymerase (PARP). Our findings suggest that compound 5 is the active chalcone analogue that contributes to cell death in HepG2 cells via the extrinsic apoptotic pathway. (C) 2015 Elsevier Ltd. All rights reserved.
US3931152A
申请人:——
公开号:US3931152A
公开(公告)日:1976-01-06
[EN] NOVEL GLUCAGON ANTAGONISTS<br/>[FR] NOUVEAUX ANTAGONISTES DE GLUCAGON
申请人:NOVO NORDISK AS
公开号:WO2003048109A1
公开(公告)日:2003-06-12
Novel compounds that act to antagonize the action of the glucagon peptide hormone on the glucagon receptor. More particularly, it relates to glucagon antagonists or inverse agonists.