The first total synthesis of the unsymmetrical bis-macrolide (-)-colletol is described. The synthesis involves a Lewis acid mediated addition of triphenylallylstannane to aldehyde 14 to set the C12 stereochemistry. The penultimate step utilized macrolactonization to assemble the 14-membered ring. The natural product was prepared in 12 linear steps and 12% overall yield.
KECK, GARY E.;BODEN, EUGENE P.;WILEY, MICHAEL R., J. ORG. CHEM., 54,(1989) N, C. 896-906
作者:KECK, GARY E.、BODEN, EUGENE P.、WILEY, MICHAEL R.
DOI:——
日期:——
Total synthesis of (+)-colletodiol: new methodology for the synthesis of macrolactones