[EN] HETEROCYCLIC INHIBITORS OF BETA - SECRETASE FOR THE TREATMENT OF NEURODEGENERATIVE DISEASES<br/>[FR] INHIBITEURS HÉTÉROCYCLIQUES DE LA BÊTA-SECRÉTASE POUR LE TRAITEMENT DE MALADIES NEURODÉGÉNÉRATIVES
申请人:ARRAY BIOPHARMA INC
公开号:WO2012071458A1
公开(公告)日:2012-05-31
The invention provides novel tricyclic compounds of Formula I' that inhibit β-secretase cleavage of APP and are useful as therapeutic agents for treating neurodegenerative diseases.
Me<sub>3</sub>SI-promoted chemoselective deacetylation: a general and mild protocol
作者:Aakanksha Gurawa、Manoj Kumar、Sudhir Kashyap
DOI:10.1039/d1ra03209g
日期:——
Me3SI-mediated simple and efficient protocol for the chemoselective deprotection of acetyl groups has been developed via employing KMnO4 as an additive. This chemoselective deacetylation is amenable to a wide range of substrates, tolerating diverse and sensitive functional groups in carbohydrates, amino acids, natural products, heterocycles, and general scaffolds. The protocol is attractive because it uses
Conformationally restricted leukotriene antagonists. Synthesis of some leukotriene D4 analogs from D-xylose
作者:Jeffrey S. Sabol、Robert J. Cregge
DOI:10.1016/s0040-4039(01)93870-5
日期:1989.1
Lewis acid catalyzed allylation of diacetyl-D-xylal 2 is stereoselective for β-C-glycoside 2b, a result used in the syntheses of pyrans 8a, b, from D-xylose.
Palladium(<scp>ii</scp>)-catalyzed stereoselective synthesis of <i>C</i>-glycosides from glycals with diaryliodonium salts
作者:Kumar Bhaskar Pal、Jiande Lee、Mrinmoy Das、Xue-Wei Liu
DOI:10.1039/d0ob00247j
日期:——
An efficient palladium(II) mediated C-glycosylation of glycals with diaryliodoniumsalts is described, providing a new strategy for the synthesis of 2,3-dideoxy C-aryl glycosides with excellent stereoselectivity. The C-glycosylation of a diverse range of glycals, including D-glucal, D-galactal, D-allal, L-rhamnal, L-fucal, L-arabinal, D-maltal, and D-lactal, occurred effectively and the corresponding
Stereoselective propargylation of glycals with allenyltributyltin(IV) via a Ferrier type reaction
作者:Mark D. Drew、Mark C. Wall、Joseph T. Kim
DOI:10.1016/j.tetlet.2012.03.115
日期:2012.6
Stereoselective introduction of an unsubstituted propargyl group to various glycals was achieved using a Ferrier type reaction with allenyltributyltin(IV). The stereoselectivity was observed based on the conformational preference of glycals as well as steric control of rigid bicyclic systems.