Total synthesis of (±)-lepadiformine via an amidoacrolein cycloaddition

被引:60
作者
Greshock, TJ [1 ]
Funk, RL [1 ]
机构
[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA
关键词
D O I
10.1021/ol0165903
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] The total synthesis of the cytotoxin lepadiformine is described. The intermolecular cycloaddition of a 2-amidoacrolein with the dimethyl acetal of 4,6-heptadienal gave a cycloadduct that was strategically functionalized for elaboration of the tricyclic ring system. These steps include a diastereoselective addition of an organoytterbium reagent to an aidehyde, cyclization to the trans-perhydroquinoline substructure via a Mitsunobu reaction, and an iodine-promoted amine cyclization with an alkene to introduce the pyrrolidine ring.
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页码:3511 / 3514
页数:4
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