Synthesis of Coronafacic Acid via TBAF-Assisted Elimination of the Mesylate and Its Conversion to the Isoleucine Conjugate

被引:4
作者
Kosaki, Yusuke [1 ]
Ogawa, Narihito [1 ]
Wang, Qian [1 ]
Kobayashi, Yuichi [1 ]
机构
[1] Tokyo Inst Technol, Dept Biomol Engn, Midori Ku, Yokohama, Kanagawa 2268501, Japan
关键词
ASYMMETRIC TOTAL SYNTHESES; PHYTOTOXIN CORONATINE; (+)-CORONAFACIC ACID; STEREOSELECTIVE-SYNTHESIS; METHYL JASMONATE; ANALOGS; BIOSYNTHESIS; ARABIDOPSIS; ACCUMULATION; CYCLIZATION;
D O I
10.1021/ol201576c
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An aldol reaction followed by elimination of the derived mesylate was used to construct the side chain that was designed to afford the cyclohexene ring of coronafacic acid via intramolecular alkylation. Elimination of the mesylate proceeded with TBAF. The alkylation was achieved with t-BuOK In THF, and then hydrolysis afforded coronafacic acid, which upon condensation with unprotected L-Isoleucine using CICO(2)Bu(I) furnished coronafacoyl-L-isoleucine, the L-lie conjugate.
引用
收藏
页码:4232 / 4235
页数:4
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