X-ray structural investigation of alkaloids. III. Molecular structure and absolute configuration of (+)-excelsine

1976 ◽  
Vol 12 (2) ◽  
pp. 184-193 ◽  
Author(s):  
S. -M. Nasirov ◽  
V. G. Andrianov ◽  
Yu. T. Struchkov ◽  
S. Yu. Yunusov
Keyword(s):  
Molecular Structure ◽  
Absolute Configuration ◽  
Structural Investigation ◽  
X Ray

The x-ray structural investigation of alkaloids I. Molecular structure and absolute configuration of (+)-cocculine

1975 ◽  
Vol 11 (3) ◽  
pp. 405-408 ◽  
Author(s):  
S. -M. Nasirov ◽  
V. G. Andrianov ◽  
Yu. T. Struchkov ◽  
S. Yu. Yunusov
Keyword(s):  
Molecular Structure ◽  
Absolute Configuration ◽  
Structural Investigation ◽  
X Ray

X-ray structural investigation of alkaloids. II. Molecular structure and absolute configuration of (−)-pseudokopsinine

1976 ◽  
Vol 12 (2) ◽  
pp. 176-183 ◽  
Author(s):  
S. -M. Nasirov ◽  
V. G. Andrianov ◽  
Yu. T. Struchkov ◽  
S. Yu. Yunusov
Keyword(s):  
Molecular Structure ◽  
Absolute Configuration ◽  
Structural Investigation ◽  
X Ray

Molecular Structure of cis- and trans-Tergurides

1998 ◽  
Vol 63 (3) ◽  
pp. 425-433 ◽  
Author(s):  
Michal Hušák ◽  
Bohumil Kratochvíl ◽  
Petr Sedmera ◽  
Vladimír Havlíček ◽  
Hana Votavová ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Absolute Configuration ◽  
Catalytic Hydrogenation ◽  
Ergot Alkaloid ◽  
Cd Spectra ◽  
X Ray ◽  
Relative Stereochemistry ◽  
Cis And Trans

Four isomers of terguride, a semisynthetic ergot alkaloid derivative, have been prepared by catalytic hydrogenation of (5R,8S)- and (5S,8S)-lisuride [1,1-diethyl-3-(6-methyl-8-ergolenyl)urea]. Relative stereochemistry of the isomers is based on NMR and CD spectra. Absolute configuration of all the series has been confirmed by the X-ray crystal structure determination of (5R,8S,10S)-terguride 2-bromobenzoate [1,1-diethyl-3-(6-methyl-8-isoergolenyl)urea, cis-dihydrolisuride].

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