Fast and efficient synthesis of flavanones from cinnamic acids
作者:Kibrom Gebreheiwot Bedane、Runner R. T. Majinda、Ishmael B. Masesane
DOI:10.1080/00397911.2016.1228110
日期:2016.11.16
ABSTRACT A fast and efficient synthesis of flavanonesfrom cinnamic acids in three steps has been developed. First, the cinnamic acid was converted to cinnamyol chlorides using SOCl2. The acid chlorides were then treated with substituted phenols in BF3 · OEt2 to furnish corresponding chalcones in 42(75% yields. Base-catalyzed cyclization of the chalcones at room temperature afforded corresponding flavones
isomerase Pin1 plays a crucial role in the development of human cancers. Recently, we have disclosed that Pin1 regulates the biogenesis of miRNA, which is aberrantly expressed in HCC and promotes HCC progression, indicating the therapeutic role of Pin1 in HCC therapy. Here, 7‐(benzyloxy)‐3,5‐dihydroxy‐2‐(4‐methoxyphenyl)‐8‐(3‐methylbut‐2‐en‐1‐yl)‐4H‐chromen‐4‐one (AF‐39) was identified as a novel Pin1
DBU-catalyzed one-pot cascade reaction of propargylamines and water for the synthesis of flavanones has been developed. This process proceeds via a sequence of 1,4-conjugate addition of water to alkynyl o-quinone methide (o-AQM), followed by the alkyne–allene isomerization and subsequent intramolecular oxa-Michael addition. This strategy provides a convenient method for accessing a broad range of flavanones
[EN] SPIRO-[1,3]-OXAZINES AND SPIRO-[1,4]-OXAZEPINES AS BACE1 AND/OR BACE2 INHIBITORS<br/>[FR] SPIRO-[1,3]-OXAZINES ET SPIRO-[1,4]-OXAZÉPINES EN TANT QU'INHIBITEURS DE BAEC1 ET/OU BACE2
申请人:HOFFMANN LA ROCHE
公开号:WO2012163790A1
公开(公告)日:2012-12-06
The present invention provides spiro-[l,3]-oxazines and spiro-[l,4]-oxazepines of formula (I) having BACE1 and/or BACE2 inhibitory activity, their manufacture, pharmaceutical compositions containing them and their use as therapeutically active substances. The active compounds of the present invention are useful in the therapeutic and/or prophylactic treatment of e.g. Alzheimer's disease and type 2 diabetes.
SPIRO-[1,3]-OXAZINES AND SPIRO-[1,4]-OXAZEPINES AS BACE1 AND/OR BACE2 INHIBITORS
申请人:Narquizian Robert
公开号:US20120302549A1
公开(公告)日:2012-11-29
The present invention provides spiro-[1,3]-oxazines and spiro-[1,4]-oxazepines of formula I
having BACE1 and/or BACE2 inhibitory activity, their manufacture, pharmaceutical compositions containing them and their use as therapeutically active substances. The active compounds of the present invention are useful in the therapeutic and/or prophylactic treatment of e.g. Alzheimer's disease and type 2 diabetes.