Synthesis of Spirotetramates via a Diels-Alder Approach

被引:10
作者
Butt, Nicholas A. [1 ]
Moody, Christopher J. [1 ]
机构
[1] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England
关键词
ENANTIOSELECTIVE TOTAL-SYNTHESIS; FUSARIUM TOXIN EQUISETIN; TETRAMIC ACIDS; TETRONIC ACIDS; DERIVATIVES; PYRROINDOMYCINS; CYLINDRAMIDE; LL-42D005;
D O I
10.1021/ol200477s
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A study toward the unusual spirotetramate core of the pyrroindomycin antibiotics employing an intermolecular Diets Alder reaction of an exo-methylene tetramic acid dienophile is described. The exp-methylene tetramate is readily synthesized from S-methylcysteine, and its reactivity as a dienophile is compared with that of related dehydroalanine derivatives. An alternative approach to spirotetramates using a nitroalkene dienophile is also reported.
引用
收藏
页码:2224 / 2227
页数:4
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