1,5-Asymmetric Induction in Boron-Mediated Aldol Reactions of β-Alkoxy Methylketones
作者:Luiz C. Dias、Anderson A. de Marchi、Marco A. B. Ferreira、Andrea M. Aguilar
DOI:10.1021/jo8009165
日期:2008.8.1
Good levels of substrate-controlled, 1,5-syn-stereoinduction are obtained in boron-mediatedaldolreactions of β-trichloromethyl-β-alkoxy and β-trifluoromethyl-β-alkoxy methylketones with achiral aldehydes, independent of the nature of the β-alkoxy protecting group (TBS or PMB). In the case of boron aldolreactions of β-aryl-β-alkoxy methylketones, the 1,5-anti-adducts were obtained with high levels
The invention relates to intermediates A3 and A4 for making Substituted-Quinoxaline-Type Piperidine Compounds.
本发明涉及用于制造取代喹喔啉型哌啶化合物的中间体 A3 和 A4。
Benzo[<i>e</i>]isoindole-1,3-diones as Potential Inhibitors of Glycogen Synthase Kinase-3 (GSK-3). Synthesis, Kinase Inhibitory Activity, Zebrafish Phenotype, and Modeling of Binding Mode
作者:Haixia Zou、Liyan Zhou、Yuanzhen Li、Yi Cui、Hanbing Zhong、Zhengying Pan、Zhen Yang、Junmin Quan
DOI:10.1021/jm9013373
日期:2010.2.11
Benzo[e]isoindole-1,3-dione derivatives were synthesized, and the effects on GSK-3 beta activity and zebrafish embryo growth were evaluated. A series of derivatives show obvious inhibitory activity against GSK-3 beta. The most potent inhibitor, 7,8-dimethoxy-5-methylbenzo[e]isoindole-1,3-dione (8a), shows nanomolar IC50 and obvious phenotype on zebrafish embryo growth associated with the inhibition of GSK-3 beta at low micromolar concentration. The interaction mode between 8a and GSK-3 beta was characterized by computational modeling.
Diastereoselective reactions of a simple secondary grignard reagent
作者:William H. Miles、Sandra L. Rivera、Jocelyn D. del Rosario
DOI:10.1016/s0040-4039(00)74117-7
日期:1992.1
The stereoselective reactions of a simple acyclic Grignard reagent CH3CH(OR)CH2CH(CH3)MgX, 2, with several electrophiles are described.
DE, LA JAIME;JAME;BARAK, GABRIELA;SASSON, YOEL, TETRAHEDRON, 45,(1989) N, C. 1533-1536