Synthesis and studies of marine natural products: the dictyoxetane core from 8-oxabicyclo[3.2.1]oct-6-en-3-ones
作者:S Proemmel、R Wartchow、H.M.R Hoffmann
DOI:10.1016/s0040-4020(02)00622-1
日期:2002.7
Starting from functionalized 8-oxabicyclo[3.2.1]oct-6-en-3-one rac-3 a series of tricyclic epoxy alcohols (4, and aminated derivative 16) have been prepared. After some tuning of the oxygen and nitrogen protecting group at carbon C3 with respect to steric bulk, stability and lipophilicity the highly functionalized tricyclic oxetanes 5 and 17 are accessible in short synthetic order. The structure of