Studies on the Total Synthesis of Pseudolaric Acid A Stereocontrolled Synthesis of the Seven-membered Lactone

The lactone 16 was obtained stereo- and regioselectively by a reaction sequence of 9 steps in 21% overall yield.

Stereoselective Synthesis of (6R)-6-(5-Methyl-2-furyl)-2-oxocyclohexanecarboxyl-10', 2'-Sultam

Stereoselective synthesis of sultam 8 was reported. The overall yield in a scLluence of 4steps is 27.5%.