ENANTIOSELECTIVE TOTAL SYNTHESIS OF (+)-BUCIDARASINS A AND C

被引:5
|
作者
Usui, Kenji [1 ]
Nakada, Masahisa [1 ]
机构
[1] Waseda Univ, Fac Sci & Engn, Dept Chem & Biochem, Shinjuku Ku, 3-4-1 Ohkubo, Tokyo 1698555, Japan
关键词
Clerodane Diterpene; Diels-Alder Reaction; Enantioselective Synthesis; Natural Product; Total Synthesis; CYTOTOXIC CLERODANE DITERPENOIDS; CHIRAL BUILDING-BLOCKS; ANTITUMOR PRINCIPLES; CASEARIN X; LEAVES; TWIGS; BARK; FLACOURTIACEAE; DERIVATIVES; ROOTS;
D O I
10.3987/COM-14-13161
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
In this paper, the first total synthesis of (+)-bucidarasins A and C is described. The chiral starting material was successfully obtained via reduction using a CBS catalyst and selective mono-TBS ether formation of trans-2-benzyloxymethy1-2-methylcyclohexane-1,3-diol, which was crucial to the successful enantioselective total synthesis of (+)-bucidarasins A and C. A synthetic approach towards (+)-bucidarasin C, based on the Barton-McCombie protocol, using V-70 as a radical promoter at low temperature to remove the C6-hydroxy moiety is also described.
引用
收藏
页码:332 / 350
页数:19
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