Cascade Assembling of Isatins and Barbituric Acids: Facile and Efficient Way to 2′′<i>H</i>-Dispiro[indole-3,5′-furo[2,3-<i>d</i>]pyrimidine-6′,5′′-pyrimidine]-2,2′,2′′,4′,4′′,6′′-(1<i>H</i>,1′<i>H</i>,1′′<i>H</i>,3′<i>H</i>,3′′<i>H</i>)-hexone Scaffold
作者:Michail N. Elinson、Valentina M. Merkulova、Alexey I. Ilovaisky、Gennady I. Nikishin
DOI:10.1002/jhet.1699
日期:2013.6
“One‐pot” transformation of isatins and barbituric acids by the direct action of the only bromine in ethanol results in the formation of substituted 2′′H‐dispiro[indole‐3,5′‐furo[2,3‐d]pyrimidine‐6′,5′′‐pyrimidine]‐2,2′,2′′,4′,4′′,6′′‐(1H,1′H,1′′H,3′H,3′′H)‐hexones in 70–87% yields via complex cascade process. Dispirobarbiturates containing spiro indole and furo[2,3‐d]pyrimidine framework are a class
“一锅法”通过在乙醇中结果的唯一溴的取代的2''的形成的直接作用和靛红酸巴比妥转化ħ -dispiro [吲哚-3,5'-呋喃并[2,3- d ]嘧啶‐6′,5′′-嘧啶] ‐2,2′,2′′,4′,4′′,6′′‐(1 H,1′H,1′′H,3′H,3′通过复杂的级联过程,' H)-己酮的产率为70-87%。含有螺吲哚和呋喃并[2,3- d ]嘧啶骨架的双螺巴比妥酸酯是一类具有突出的药理和生理活性的化合物。因此,七以前无法进入的2'' ħ -dispiro [吲哚-3,5'-呋喃并[2,3- d] pyrimidine-6',5'-pyrimidine] -2,2',2'',4',4'',6''-(1 H,1'H,1''H,3'H, 3'' ħ)-hexones已经合成表示该新类的dispirobarbiturates。