期刊
TETRAHEDRON LETTERS
卷 42, 期 17, 页码 3101-3103出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(01)00377-X
关键词
dihydroagarofuran; sesquiterpenoid; enantioselective synthesis
This paper describes a new approach for the enantioselective syntheses of naturally occurring polyhydroxylated dihydroagarofuran sesquiterpenoids starting from (-)-carvone. Through utilizing asymmetric Robinson annulation and acetoxylation as key steps, the agarofuran skeleton was enantioselectively constructed and an oxyfunctionalized group was introduced into the C-l position. The important intermediate 23 to dihydroagarofuran was obtained in eleven steps. (C) 2001 Elsevier Science Ltd. All rights reserved.
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