Total synthesis of an antioxidant isolated from yeast via palladium-catalyzed coupling and its application for related compounds
作者:Shuji Jinno、Takaaki Okita、Kuniyo Inouye
DOI:10.1016/s0960-894x(99)00126-2
日期:1999.4
A total synthesis of an antioxidant (1) having a benzofuran skeleton was achieved in four steps via the palladium(0)-catalyzed cross-coupling reaction. We also prepared several related compounds bearing a variety of aromatic or heterocyclic rings. Some of these compounds demonstrate more potent than 1 for antioxidative activity using guinea pig liver microsomes.
A total synthesis of benzodioxole derivative 1 was achieved via a palladium(0)-catalyzed cross-coupling reaction in a 68% overall yield (4 steps). A novel series of benzodioxoles bearing a variety of aromatic and heterocyclic rings was also prepared and the antioxidative activity evaluated using in vitro model systems. Structure-activity studies revealed that i) intramolecular hydrogen-bonding in the