Total synthesis of ent-sedridine using proline-catalyzed asymmetric addition as a key step

被引:17
作者
Itoh, Takashi [1 ]
Nishimura, Kosuke [1 ]
Nagata, Kazuhiro [1 ]
Yokoya, Masashi [1 ]
机构
[1] Showa Univ, Sch Pharmceut Sci, Shinagawa Ku, Tokyo 1428555, Japan
关键词
asymmetric catalysis; nucleophilic additions; total synthesis; alkaloids; piperidine;
D O I
10.1055/s-2006-948203
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A total synthesis of ent-sedridine is described. The development of a new method for the construction of the C-2 chiral center of the piperidine ring was achieved using a proline-catalyzed Mannich reaction. Reaction of 4-hydroxybutanal and p-anisidine to form an imine and subsequent addition of acetone gave the key chiral aliphatic precursor with high enantioselectivity.
引用
收藏
页码:2207 / 2210
页数:4
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