Synthesis of Arieianal, a Prenylated Benzoic Acid from <i>Piper </i><i>a</i><i>rieianum</i>
作者:Sina I. Odejinmi、David F. Wiemer
DOI:10.1021/np050237e
日期:2005.9.1
for selective displacement of an allylic bromide in the presence of an allylicacetate and a stereoselective Horner-Wadsworth-Emmons condensation to afford the desired E olefin of the isoprenoid side chain. After the diterpenoid chain was joined to the aromatic ring, use of sodium metal in hot sBuOH allowed selectivecleavage of two benzyl ether protecting groups, and a sequence of oxidations gave