An intramolecular 1,3-dipolar cycloaddition has efficiently constructed the A-ring portions of the cylindrospermopsin alkaloids. A nitro-aldol addition of an elaborated nitroalkane to a pyrimidine aldehyde followed by an intramolecular reductive guanidinylation has enabled the syntheses of all three alkaloids in this family in 18-19 steps. We report the first asymmetric synthesis of cylindrospermopsin, unambiguously assigning its absolute configuration. (c) 2006 Elsevier Ltd. All rights reserved.
FLUOROISOQUINOLINE SUBSTITUTED THIAZOLE COMPOUNDS AND METHODS OF USE
申请人:Zeng Qingping
公开号:US20110263647A1
公开(公告)日:2011-10-27
The invention relates to thiazole compounds of Formula I and compositions thereof useful for treating diseases mediated by protein kinase B (PKB) where the variables have the definitions provided herein.
The invention also relates to the therapeutic use of such thiazole compounds and compositions thereof in treating disease states associated with abnormal cell growth, cancer, inflammation, and metabolic disorders.
Synthesis of the Putative Structure of 7-Deoxycylindrospermopsin: C7 Oxygenation Is Not Required for the Inhibition of Protein Synthesis
作者:Ryan E. Looper、Maria T. C. Runnegar、Robert M. Williams
DOI:10.1002/anie.200500520
日期:2005.6.20
Syntheses of the cylindrospermopsin alkaloids
作者:Ryan E. Looper、Maria T.C. Runnegar、Robert M. Williams
DOI:10.1016/j.tet.2006.02.044
日期:2006.5
An intramolecular 1,3-dipolar cycloaddition has efficiently constructed the A-ring portions of the cylindrospermopsin alkaloids. A nitro-aldol addition of an elaborated nitroalkane to a pyrimidine aldehyde followed by an intramolecular reductive guanidinylation has enabled the syntheses of all three alkaloids in this family in 18-19 steps. We report the first asymmetric synthesis of cylindrospermopsin, unambiguously assigning its absolute configuration. (c) 2006 Elsevier Ltd. All rights reserved.