Synthesis of the A–D Ring System of the Gambieric Acids
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The A–D fragment of gambieric acids A and C has been synthesized using an asymmetric Tsuji–Trost allylation reaction to couple the two key segments. The A ring fragment has been prepared by a short and highly efficient route involving diastereoselective Lewis acid mediated alkylation of an acetal. Iterative ring-closing metathesis reactions have been used to construct cyclic ethers and assemble the tricyclic B–D fragment.
创建时间：
2016-02-13
