[1] Univ Loughborough, Dept Chem, Loughborough LE11 3TU, Leics, England
[2] Univ Exeter, Dept Chem, Exeter EX4 4QD, Devon, England
[3] Univ Wales, Dept Chem, Cardiff CF1 3TB, S Glam, Wales
来源:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
|
1998年
/
07期
关键词:
D O I:
10.1039/a709084f
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A nine step synthesis of the left hand portion of the azinomycins is described starting from 3,3-dimethylacrylic acid. The approach relies on a Sharpless asymmetric dihydroxylation (AD) reaction to install the requisite (2S,3S)-stereochemistry of epoxy alcohol 4. This epoxide is converted to crystalline amide derivative 12 whose structure and absolute stereochemistry have been unambiguously established using X-ray crystallography, Coupling of epoxy alcohol (2S,3S)-4 with naphthoyl chloride 16 and subsequent manipulations furnish epoxy amide (2S,3S)-1 identical in all respects with the natural material.