Vilsmeier reagent initialed sequential one-pot multicomponent synthesis of N,O-disubstituted glycolamides as dipeptidyl peptidase 4 inhibitors
作者:Shi-Han Lu、Wan-Ping Yen、Henry J. Tsai、Chien-Shu Chen、Fung Fuh Wong
DOI:10.1016/j.tet.2015.07.041
日期:2015.9
A series of N,O-disubstituted glycolamide derivatives have been successfully synthesized through Vilsmeier reagent initialed sequential one-pot multicomponent procedure from α-chloro N-arylacetamides with formamide/PBr3 and acid chloride. The three-step synthesis involved Vilsmeier formyloxylation reaction, decarbonylation, and esterification. The strategy was also applicable to α-chloro N-(naphthalenyl)acetamide
通过Vilsmeier试剂启动的顺序一锅多组分方法,由α-氯代N-芳基乙酰胺与甲酰胺/ PBr 3和酰氯成功地合成了一系列N,O-二取代的乙醇酰胺衍生物。三步合成涉及Vilsmeier的甲酰氧基化反应,脱羰基反应和酯化反应。该策略也适用于α-氯N-(萘基)乙酰胺以制备相应的N,O-二取代的乙酰胺产物。所有的ñ,Ø评价了对二取代的乙醇酰胺的抗二肽基肽酶4的抑制活性。根据抑制结果,O-呋喃-2-羰基和O-喹啉-8-磺酰基N-芳基甘氨酰胺化合物中的几种具有更好的二肽基肽酶4的有效抑制作用。