作者:Reinhard W. Hoffmann、Thorsten Rohde、Eckart Haeberlin、Frank Schäfer
DOI:10.1021/ol990944x
日期:1999.12.1
[GRAPHICS]Phenalamide A(2) (Ib) has been synthesized for the first time, The synthesis features the homologation of aldehyde 5 to trienal 3 with the new conjunctive reagent 6 and the formation of amide 14 with the functionalized Horner-Emmons reagent 4.
Synthesis of a C-9 to C-18 Building Block of the Phenalamides
In the context of a synthesis of phenalamide A2, the C-9 to C-18 building block 6 was synthesized. The stereogenic centers were generated by alkylation of an Evans oxazolidinone 12 and by a crotylboration reaction using the enantiomerically pure (E)-α-chlorocrotylboronate (4).