共 50 条
Total Synthesis of Laingolide B Stereoisomers and Assignment of Absolute Configuration
被引:15
|作者:
Cui, Chengsen
[1
]
Dai, Wei-Min
[1
]
机构:
[1] Hong Kong Univ Sci & Technol, Lab Adv Catalysis & Synth, Dept Chem, Kowloon, Hong Kong, Peoples R China
关键词:
CROSS-COUPLING REACTION;
PRACTICAL CHIRAL AUXILIARY;
LYNGBYA-BOUILLONII;
NATURAL-PRODUCTS;
MARINE CYANOBACTERIA;
PALMYROLIDE;
MACROLIDE;
PSEUDOEPHEDRINE;
STEREOCHEMISTRY;
METATHESIS;
D O I:
10.1021/acs.orglett.8b01269
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Total synthesis of (-)-(2R,9S)- and (+)-(2S,9S)-stereoisomers of laingolide B has been accomplished by using sequential ring-closing metathesis (RCM) and alkene isomerization to construct the macrocyclic trans-N-methyl enamide moiety. The Myers alkylation was used to secure the C2 stereochemistry of the two RCM precursors from a common (9S)-C3-C9 alkyl iodide. The absolute configuration of laingolide B has been assigned as (2S,9R) by comparison of the optical rotation data.
引用
收藏
页码:3358 / 3361
页数:4
相关论文