Total synthesis of (+)-gregatin B and E.
Total synthesis of (+)-gregatin B and E.
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DOI:
10.1021/ol402472q
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发表时间:
2013-09
期刊:
影响因子:
5.2
通讯作者:
Taichi Kusakabe;Y. Kawai;Keisuke Kato
中科院分区:
文献类型:
--
作者:
Taichi Kusakabe;Y. Kawai;Keisuke Kato
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.