摘要:
A total synthesis of (+)-goniothalesdiol, a 3,4-dihydroxy-2,5 -disubstituted tetrahydrofuran isolated from Goniothalamus borneensis (Annonaceae), and its 7-epimer is reported using oxycarbonylation methodology for construction of polyhydroxylated substituted heterocycles. Diastereoselectivity of addition of organometallic reagents to 2,3-O-isopropylidene-D-threose derivatives using theoretical calculations based on the semiempirical PM5 was studied. (C) 2005 Elsevier Ltd. All rights reserved.