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Intramolecular Formal oxa-[3 + 3] Cycloaddition Approach to the ABD System of Phomactin A
Cole, Kevin P.,Hsung, Richard P.
, p. 4843 - 4846 (2007/10/03)
(Equation Presented) The ABD-ring of phomactin A was synthesized using an intramolecular formal oxa-[3 + 3] cycloaddion of an α,β-unsaturated iminium salt tethered to a 1,3-diketone. This represents the first time that the 12-membered ring has been formed
