16386-34-8Relevant articles and documents
Asymmetric synthesis of piperidines using the nitro-Mannich reaction☆
Anderson, James C.,Bouvier-Israel, Eva,Rundell, Christopher D.,Zhang, Xiangyu
, (2020/12/21)
A method for the synthesis of functionalized piperidines containing 3 contiguous stereocentres in the 2-,3- and 4- positions uses a diastereoselective nitro-Mannich to control stereochemistry. The nitro-Mannich reaction between a β-aryl/heteroaryl substituted nitroalkanes and glyoxylate imine provides β-nitro-amines with good selectivity (70:30 to >95:5) for the syn, anti-diastereoisomers. Reductive cyclisation with BF3.OEt2 and Et3SiH gave, after purification, stereochemically pure piperidines in 19–57% yield for ten examples with different 4-aryl/heteroaryl substituents.
Scope of the formal [3+2] cycloaddition for the synthesis of five-membered ring of functionalized indanes
Lanta?o, Beatriz,Aguirre, Jose Manuel,Ugliarolo, Esteban Ariel,Torviso, Rosario,Pomilio, Nicolás,Moltrasio, Graciela Yolanda
experimental part, p. 913 - 921 (2012/01/14)
We report our research about the synthesis of functionalized indanes in the pentagonal ring by a formal [3+2] cycloaddition using benzhydrols and styrene derivatives with electron-withdrawing groups joined to C-β, such as carboxyl, carboxymethyl, carbonyl
CATECHOL-BASED DERIVATIVES FOR TREATING OR PREVENTING DIABETICS
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Page/Page column 3; 6-7, (2009/06/27)
The present invention provides a catechol-based derivative and a pharmaceutical acceptable salt therefrom and a solvate therefrom. A pharmaceutical composition for preventing or treating diabetics and ischemics, comprising a catechol-based derivative of formula (I) and at least one selected from the group consisting of a pharmaceutical excipient, a diluent and a carrier.