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Highly efficient stereocontrolled total synthesis of (+)-upial
被引:9
|作者:
Takahashi, Kazunori
[1
]
Watanabe, Masayuki
[1
]
Honda, Toshio
[1
]
机构:
[1] Hoshi Univ, Fac Pharmaceut Sci, Shinagawa Ku, Tokyo 1428501, Japan
关键词:
intramolecular reactions;
natural products;
silanes terpenoids;
total synthesis;
D O I:
10.1002/anie.200704423
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
(Chemical Equation Presented) Dual benefit:(+)-Upial, isolated from the sponge Dysidea fragilis (Kaneohe Bay, Hawaii), as a nonisoprenoid sesquiterpene aldehyde lactone, was efficiently synthesized. The key step involved an intramolecular carbonyl-ene reaction, in which the stereocontrolled construction of a bicyclo[3.3.1]nonane ring with five asymmetric carbon centers and the facile introduction of the exo-methylene unit were achieved in a single step (see scheme). © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
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页码:131 / 133
页数:3
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