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Total Synthesis of (+)-Gregatin B and E
被引:24
|作者:
Kusakabe, Taichi
[1
]
Kawai, Yasuko
[1
]
Kato, Keisuke
[1
]
机构:
[1] Toho Univ, Fac Pharmaceut Sci, Funabashi, Chiba 2748510, Japan
关键词:
PD(II)-MEDIATED CYCLIZATION-CARBONYLATION;
COUPLING REACTIONS;
IODIDES;
ASPERTETRONIN;
DERIVATIVES;
GREGATINS;
REVISIONS;
GRAMININ;
ALKYNES;
ACCESS;
D O I:
10.1021/ol402472q
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The first total synthesis of (+)-gregatin E and a new total synthesis of (+)-gregatin B are described. Key features of our synthetic approach involve a palladium-catalyzed cyclization-methoxycarbonylation of optically active propargylic acetate and a Suzuki-Miyaura coupling or CuTC-mediated coupling reaction. The absolute configuration of (+)-gregatin E (5R,5'S) is proposed.
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页码:5102 / 5105
页数:4
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