Chemoenzymatic Synthesis of <i>trans</i>-Tetrahydrofuran Cores of Annonaceous Acetogenins from Bromobenzene
作者:Juan Carlos Ramos、Margarita Brovetto、Gustavo A. Seoane
DOI:10.1021/ol400650v
日期:2013.4.19
Two types of trans-THF cores, present in acetogenins, have been synthesized by an intramolecular iodoetherification reaction. The starting alkenol was obtained in a few steps from a chiral cis-diol resulting from microbial oxidation of bromobenzene. The cyclization gave complete stereoselectivity for trans-THF cores with either (S,S) or (R,R) configurations at the THF chiral carbons.