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Synthesis of pyrrolizidine alkaloids via 1,3-dipolar cycloaddition involving cyclic nitrones and unsaturated lactones
被引:28
|作者:
Stecko, Sebastian
[1
]
Jurczak, Margarita
[1
]
Urbanczyk-Lipkowska, Zofia
[1
]
Solecka, Jolanta
[2
]
Chmielewski, Marek
[1
]
机构:
[1] Polish Acad Sci, Inst Organ Chem, PL-01224 Warsaw, Poland
[2] Natl Inst Hyg, PL-00791 Warsaw, Poland
关键词:
nitrone;
necine bases;
iminosugars;
1,3-dipolar cycloaddition;
D O I:
10.1016/j.carres.2008.04.029
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
The 1,3-dipolar cycloaddition of cyclic nitrone derived from tartaric acid and (S)-5-hydroxymethyl-2(5H)-furanone leads to a single adduct which was transformed into 2,6-dihydroxyhastanecine via reaction sequence involving reduction of the lactone moiety, glycolic cleavage of the terminal diol, and the N-O hydrogenolysis followed by the intramolecular alkylation of the nitrogen atom. (C) 2008 Elsevier Ltd. All rights reserved.
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页码:2215 / 2220
页数:6
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