Synthetic studies on wortmannin and 11-desacetoxywortmannin
摘要:
This report describes the first synthesis of the highly reactive furanocyclohexadienone lactone subunit of the natural products wortmannin (1) and 11-desacetoxywortmannin (2). The simplified wortmannin analogue 6 was prepared by acid treatment of aminomethylene lactone 22 in analogy to the known conversion of lactone 3 into wortmannin. Compound 22 was, in turn, prepared from the readily accessible lactone 18 through sequential oxidations and introduction of the aminomethylene unit using tris(dimethylamino)methane.
Synthetic studies on wortmannin and 11-desacetoxywortmannin
作者:Chris A. Broka、Beatrice Ruhland
DOI:10.1021/jo00044a025
日期:1992.8
This report describes the first synthesis of the highly reactive furanocyclohexadienone lactone subunit of the natural products wortmannin (1) and 11-desacetoxywortmannin (2). The simplified wortmannin analogue 6 was prepared by acid treatment of aminomethylene lactone 22 in analogy to the known conversion of lactone 3 into wortmannin. Compound 22 was, in turn, prepared from the readily accessible lactone 18 through sequential oxidations and introduction of the aminomethylene unit using tris(dimethylamino)methane.