ChemInform Abstract: Fungal Metabolites. Part 22. Determination of Absolute Configuration and Biological Activity of New Immunosuppressants, Mycestericins D, E, F, and G.

ChemInform ◽  
2010 ◽  
Vol 28 (12) ◽  
pp. no-no
Author(s):  
T. FUJITA ◽  
N. HAMAMICHI ◽  
M. KIUCHI ◽  
T. MATSUZAKI ◽  
Y. KITAO ◽  
...  
1996 ◽  
Vol 49 (9) ◽  
pp. 846-853 ◽  
Author(s):  
TETSURO FUJITA ◽  
NORIMITSU HAMAMICHI ◽  
MASATOSHI KIUCHI ◽  
TOHRU MATSUZAKI ◽  
YUKI KITAO ◽  
...  

2007 ◽  
Vol 70 (8) ◽  
pp. 1339-1343 ◽  
Author(s):  
Karsten Krohn ◽  
Dietmar Gehle ◽  
Sujit Kumar Dey ◽  
Nilufar Nahar ◽  
Mohammed Mosihuzzaman ◽  
...  

1986 ◽  
Vol 51 (8) ◽  
pp. 1731-1742 ◽  
Author(s):  
Josef Hájíček ◽  
Jan Trojánek

A synthesis of (±)-strempeliopine (II) is described, the key step of which is the stereoselective reductive rearrangement of 18-methylene-1,2-dehydroaspidospermidine (XI). The absolute configuration of the natural (-)-base II was determined as (2S, 7R, 20R, 21R) on the basis of its synthesis from (+)-18-methylenevincadifformine (XVII) the configuration of which was derived from a comparison of circular dichroism properties of bases with a β-anilinoacrylate chromophore. The biogenesis of the alkaloids of the schizozygane type is discussed.


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