Studies on the Total Synthesis of Formamicin: Synthesis of the C(1)−C(11) Fragment
作者:Noel A. Powell、William R. Roush
DOI:10.1021/ol0069610
日期:2001.2.1
[figure: see text] An efficient and highly concise synthesis of 6, corresponding to the C(1)-C(11) fragment of formamicin (1), has been accomplished by a route utilizing a diastereoselective lactate aldol reaction to set the C(6) tertiary ether and the TES-OTf mediated transketalization of the C(6) tertiary methoxymethyl ether and the C(25) PMB ether to set the seven-membered methylene acetal unit