[EN] CODRUG THAT DISINTEGRATES IN INTESTINE, PREPARATION THEREFOR, AND USE THEREOF<br/>[FR] CO-MÉDICAMENT SE DÉSINTÉGRANT DANS L'INTESTIN, SA PRÉPARATION ET SON UTILISATION<br/>[ZH] 一类肠道裂解型共药及其制备和用途
The present invention relates to compounds effective in preventing neuronal cell death, which may be used in the treatment of neurodegenerative diseases. It is based, at least in part, on the discovery that particular compounds were effective in preventing neuronal death in model systems of Huntington's Disease.
A General, Concise Strategy that Enables Collective Total Syntheses of over 50 Protoberberine and Five Aporhoeadane Alkaloids within Four to Eight Steps
作者:Shiqiang Zhou、Rongbiao Tong
DOI:10.1002/chem.201601245
日期:2016.5.17
reported. This synthesis represents the most efficient and shortest route to date, featuring three catalytic processes: CuI‐catalyzed redox‐A3 reaction, Pd‐catalyzed reductive carbocyclization, and PtO2‐catalyzed hydrogenation. Importantly, this new strategy to the tetracyclic framework has also been applied to the collective concise syntheses of >30 natural protoberberines (without 13‐methyl group) and