Radical-Based Route to Functionalized Tetralin: Formal Total Synthesis of (±)-Hamigeran B

被引:1
|
作者
Okanishi, Yusuke [1 ]
Ishikawa, Tohru [1 ]
Jinnouchi, Takuya [1 ]
Hayashi, Satoshi [2 ]
Takanami, Toshikatsu [2 ]
Aoyama, Hiroshi [3 ]
Yoshimitsu, Takehiko [1 ]
机构
[1] Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Div Pharmaceut Sci, Okayama 7008530, Japan
[2] Meiji Pharmaceut Univ, Tokyo 2048588, Japan
[3] Osaka Univ, Grad Sch Pharmaceut Sci, Suita, Osaka 5650871, Japan
来源
JOURNAL OF ORGANIC CHEMISTRY | 2023年 / 88卷 / 02期
关键词
LIGHT PHOTOREDOX CATALYSIS; ORGANIC-MOLECULES; O-QUINODIMETHANES; (-)-HAMIGERAN B; PORPHYRINS; GENERATION;
D O I
10.1021/acs.joc.2c02552
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A formal synthetic route to hamigeran B, an antiviral marine natural product with a unique tricyclic molecular architecture, has been developed. The key chemical transformations in the present route include a novel zinc(II)porphyrin-catalyzed photoredox radical cascade cyclization to access a functionalized tetralin, a catalyst-free benzylic radical bromination with NBS by visible-light irradiation, and a samarium(II)-induced cyclization of brominated tetralone possibly via an orthoquinodimethane-like intermediate.
引用
收藏
页码:1085 / 1092
页数:8
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