Synthesis and evaluation of novel aza-caged Garcinia xanthones
作者:Xiaojin Zhang、Xiang Li、Haopeng Sun、Zhengyu Jiang、Lei Tao、Yuan Gao、Qinglong Guo、Qidong You
DOI:10.1039/c2ob07088j
日期:——
Inspired by the therapeutic potential of the simplified caged xanthones, we have developed a chemical strategy for synthesizing novel aza-caged Garcinia analogues through a regioselective Claisen/Diels–Alder cascade reaction. The origin of regioselectivity has been explained using the DFT method. We have further evaluated the cell proliferation and IKKβ inhibitory activities of these compounds and studied their binding mode with IKKβ by molecular docking. The results suggested that the aza-caged scaffold provides a suitable modification site and the introduction of a hydrophobic moiety leads to improvement in the cytotoxicity and IKKβ inhibitory activity. The aza-caged compound 6c exhibited an IC50 value of 2.68, 2.10, 8.02 μM against the HepG2, A549 cells and IKKβ, respectively. Mechanism studies with 6c showed that the aza-caged compounds induce apoptosis and cell cycle S phase arrest in A549 cells.
GARCINIA DERIVATIVE, ITS PREPARING METHOD AND MEDICINAL USE
申请人:You Qidong
公开号:US20120059050A1
公开(公告)日:2012-03-08
The present invention relates to a field of pharmaceutical chemistry, more specifically, the present invention relates to a garcinia derivative Formula (I), its preparing method, and medicinal use. Wherein the definitions of R
1
and R
2
are disclosed in the specification of the present invention, and the derivative of the present invention is a structurally simplified analogue of the gambogic acid compound; wherein the gambogic acid compound possesses anti-cancer characteristics, and could be used for preparation of anti-tumor drugs.
SMALL MOLECULE THERAPEUTICS, SYNTHESIS OF ANALOGUES AND DERIVATIVES AND METHODS OF USE
申请人:Theodorakis Emmanuel
公开号:US20100137421A1
公开(公告)日:2010-06-03
Provided herein are compounds that are inducers of apoptosis activators of caspases and pharmaceutically acceptable derivatives thereof. Also provided are methods of synthesis of the compounds and methods for treatment of diseases in which there is uncontrolled cell growth and spread of abnormal cells, such as cancers, by administering the compounds.
There are provided novel compounds of formula (I) wherein R
1
, R
2
and R
3
are as defined in the specification and pharmaceutically acceptable salts thereof; together with processes for their preparation, compositions containing them and their use in therapy. The compounds are inhibitors of the kinase Itk.
Methods of treating diseases responsive to induction of apoptosis and screening assays
申请人:Cytovia, Inc.
公开号:US07592143B2
公开(公告)日:2009-09-22
The present invention relates to screening methods useful for drug discovery of apoptosis inducing compounds. In particular, the screening methodology relates to using Apoptosis Inducing Proteins (AIPs) as a target for the discovery of apoptosis activators useful as anticancer agents. The screening methods of the present invention can employ homogenous or heterogeneous binding assays using purified or partially purified AIPs; or whole cell assays using cells with altered levels of one or more AIPs. The invention also contemplates use of gambogic acid or GA-related compounds which bind AIPs and can accordingly be used to raise antibodies useful for drug discovery. Alternatively, labeled GA is used for competitive binding assays for drug discovery. Such assays afford high throughput screening of chemical libraries for apoptosis activators.