Author/Authors :
Kadota، نويسنده , , Isao and Takamura، نويسنده , , Hiroyoshi and Yamamoto، نويسنده , , Yoshinori، نويسنده ,
Abstract :
The J ring segment 2 of gambieric acid was synthesized stereoselectively by the coupling between the cyclic ether component 3 and the alkenyl iodide 4. The tetrahydropyran 3 was stereoselectively synthesized by the 6-endo-cyclization of a hydroxyepoxide prepared from deoxy-d-ribose. The side chain moiety 4 was prepared by the stereoselective hydrostannation of an internal alkyne.