Asymmetric total synthesis of (-)-Linderol A

被引:22
|
作者
Yamashita, Masayuki [1 ]
Yadav, Navnath Dnyanoba [1 ]
Sawaki, Takeshi [1 ]
Takao, Ikuko [1 ]
Kawasaki, Ikuo [1 ]
Sugimoto, Yasuko [1 ]
Miyatake, Akemi [1 ]
Murai, Kousuke [1 ]
Takahara, Ayano [1 ]
Kurume, Ai [1 ]
Ohta, Shunsaku [1 ]
机构
[1] Kyoto Pharmaceut Univ, Dept Funct Mol Chem, COE Program 21, Kyoto 6078414, Japan
来源
JOURNAL OF ORGANIC CHEMISTRY | 2007年 / 72卷 / 15期
关键词
POTENT INHIBITORY-ACTIVITY; FRIEDEL-CRAFTS ACYLATION; LINDERA-UMBELLATA BARK; B-16; MELANOMA-CELLS; 2-SUBSTITUTED CYCLOPENTA<B>BENZOFURAN-3-OL DERIVATIVES; TRICYCLIC HEXAHYDRODIBENZOFURAN CONSTITUENT; DIASTEREOSELECTIVE 2+2 PHOTOCYCLOADDITION; 3-SUBSTITUTED COUMARINS; CHIRAL CYCLOHEXENONECARBOXYLATES; STEREOCONVERGENT TRANSFORMATION;
D O I
10.1021/jo070682+
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The first asymmetric total synthesis of (-)-Linderol A, a potent inhibitor of melanin biosynthesis of cultured B-16 melanoma cells, has been achieved via two key reactions: a diastereoselective [2+2] photocycloaddition of a coumarin-3-carboxylate bearing a chiral auxiliary with 3-methyl-1-butene and a subsequent stereoconvergent transformation of the photoadducts with use of dimethylsulfoxonium methylide to afford a tetrahydrodibenzofuran derivative.
引用
收藏
页码:5697 / 5703
页数:7
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