Development of inhibitors to antagonize the activities of antiapoptoticBcl-2familyproteins is of particular interest in cancer chemotherapy. We discovered a quinazoline-2(1H)-thione derivative (DCBL55) as a new Bcl-xL, Bcl-2, and Mcl-1 inhibitor by virtual database screening. We systematically modified the structure of compound 1 by chemical synthesis. The interactions of the compounds with Bcl-xL
Enantioselective phospha-Michael reaction of diethyl phosphonate with exocyclic α,β-unsaturated benzocyclic ketones catalyzed by a dinuclear zinc−AzePhenol catalyst
作者:Na Shao、Yong-Yang Luo、Hui-Jie Lu、Yuan-Zhao Hua、Min-Can Wang
DOI:10.1016/j.tet.2018.03.016
日期:2018.4
The dinuclear zinc complexes as high performance catalysts were used to catalyze phospha-Michael reaction of exocyclic α,β-unsaturated benzocyclic ketones under mild conditions, and the desired products possessing 1-indanones or 1-tetralones skeleton were obtained with excellent enantioselectivities of up to 99%/99% ee and yields of up to 99%. The absolute stereochemistry of the major products catalyzed
Evaluation of Silica-H2SO4 as an Efficient Heterogeneous Catalyst for the Synthesis of Chalcones
作者:Aeysha Sultan、Abdul Raza、Muhammad Abbas、Khalid Khan、Muhammad Tahir、Nazamid Saari
DOI:10.3390/molecules180810081
日期:——
We report an efficient silica-H2SO4 mediated synthesis of a variety of chalcones that afforded the targeted compounds in very good yield compared to base catalyzed solvent free conditions as well as acid or base catalyzed refluxing conditions.
Ash of pomegranate peels (APP): A bio-waste heterogeneous catalyst for sustainable synthesis of α,α′-bis(substituted benzylidine)cycloalkanones and 2-arylidene-1-tetralones
作者:Rupesh C. Patil、Uttam P. Patil、Ashutosh A. Jagdale、Sachinkumar K. Shinde、Suresh S. Patil
DOI:10.1007/s11164-020-04160-5
日期:2020.7
Abstract α,α′-bis(substituted benzylidene)cycloalkanones were efficiently prepared from variously substituted aldehydes and cycloalkanones in water by using ash of pomegranate peels (APP) as a catalyst. The APP-catalyst was obtained from bio-waste by simple thermal treatment to dry peels of pomegranate fruit and formation of its active phase was confirmed by FT-IR, XRD, XRF, EDX, SEM, DSC-TGA and BET
Gerinnungsphysiologische Aktivität von 2-Aryl-2,3,4,5-tetrahydro-1H-benzocyclohepten-1,3-dionen
作者:Klaus Rehse、Thomas Lang、Norbert Rietbrock
DOI:10.1002/ardp.19773101206
日期:——
14 Titelverbindungen wurden synthetisiert. Neun zeigten nach einmaliger oraler Applikation bei Ratten blutgerinnungshemmende Eigenschaften. Fünf verringerten die Gerinnungsfähigkeit des Blutes (Quick‐Zeit) auf weniger als 25% der Norm. Bei 4i (340 mg/kg) wurde dieses Niveau nach 5 h erreicht und 50 h lang aufrechterhalten. Die maximale Verlängerung der Quick‐Zeit wurde hier nach 24 h beobachtet.