353746-54-0Relevant articles and documents
Modification of polyhedral oligomeric silsesquioxane derivatives with heck reaction as possible new bio-hybrid materials
Tahir Gunkara, Omer
, p. 909 - 916 (2019/03/07)
The regioselective synthesis of Polyhedral oligomeric silsesquioxane (POSS)-based norbornyl imide derivatives through palladium catalyzed Heck coupling reaction was reported on an effective synthetic method to organic–inorganic bio-hybrids serving as advanced materials. The reaction of POSS-based imide derivatives with various aryl iodides catalyzed by palladium acetate in the presence of triethyl amine, as the base, in DMF afforded the products in moderate yields. All new POSS derivatives were structurally characterized by FTIR, 1H, 13C NMR, HRMS and GC/MS analyses.
Amide compounds for regulating WNT signal channel and application of compounds
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Paragraph 0349; 0351, (2019/07/11)
The invention belongs to the technical field of medicine, and particularly relates to amide compounds for regulating a WNT signal channel and an application of the compounds. The compounds have a structure represented by a general formula I shown in the description.
Design, synthesis and mechanism of novel shikonin derivatives as potent anticancer agents
Baloch, Shahla Karim,Ma, Lin,Wang, Xue-Liang,Shi, Jing,Zhu, Yu,Wu, Feng-Yao,Pang, Yan-Jun,Lu, Gui-Hua,Qi, Jin-Liang,Wang, Xiao-Ming,Gu, Hong-Wei,Yang, Yong-Hua
, p. 31759 - 31767 (2015/04/22)
In this study, a series of novel shikonin derivatives (30-49) were designed and synthesized and their anti-proliferative activities were evaluated against five different cancer cell lines, including HeLa, HepG2, MCF-7, BGC and A549. Some of the compounds show strong anti-proliferative effects against HeLa, HepG2 and MCF-7 with IC50 values ranging from 1.26 to 18.50 μM and show lower side effects towards normal cell lines as compared to shikonin. Compared to other compounds and shikonin itself, compound 40 displayed much stronger anti-proliferative effects against various cancer cell lines. Furthermore, the flow cytometry results demonstrated that compound 40 could obviously induce apoptosis in a dose- and time-dependent manner and also cause cell cycle arrest at the G2/M phase. For further investigation of the aforementioned mechanisms, we performed Western blot experiments and found that the cleavage of PARP and upstream caspase-3 increased; moreover, caspase-9 was activated by cleavage but not caspase-8. These aforementioned results also indicate that compound 40 could induce caspase-9 involved apoptosis and G2/M phase cell cycle arrest via the P21, p-CDC2 (Tyr15) pathway independent of P53.