Article (Scientific journals)
Configurational and Conformational Studies of Quinolizidine and Beta-Carboline Moieties in the Corynanthe-Tryptamine Alkaloids
Grigoriev, Dimitri; Semenov, Valentin A.; Angenot, Luc et al.
2025In International Journal of Quantum Chemistry, 125 (1)
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Abstract :
[en] Configurational and conformational assignments of 11 Corynanthe-Tryptamine alkaloids ( usambarane skeleton) were performed based on the correlation of the high level calculated and experimental H and C 13 NMR chemical shifts. for some compounds, the reassignment of a number of individual signals together with spectral assignments of experimentally unresolved peaks was suggested. the different conformations of the C/D quinolizidine ring system appear strictly dependent of the structure of the side chain ( ethyl, vinyl or ethylidenic ) ; in the latter case , the configuration ( E or Z) of the 19-20 double bond of the ethylidenic chain is determinant to establish a cis- or a trans-quinolizidine system of rings C/D. The conformation is also influenced by the equatorial or axial conformation of C_15) substituents.
Research Center/Unit :
CIRM - Centre Interdisciplinaire de Recherche sur le Médicament - ULiège
Disciplines :
Chemistry
Pharmacy, pharmacology & toxicology
Author, co-author :
Grigoriev, Dimitri;  Siberian Branch of the Russian Academy of Sciences, Irkutsk > Institute of chemistry
Semenov, Valentin A.;  Siberian Branch of the Russian academy of Sciences, Irkutsk > Chemistry
Angenot, Luc  ;  Université de Liège - ULiège > Département de pharmacie
Krivdin, Leonid B.;  Siberian Branch of the Academy of Sciences, Irkutsk > Chemistry
Language :
English
Title :
Configurational and Conformational Studies of Quinolizidine and Beta-Carboline Moieties in the Corynanthe-Tryptamine Alkaloids
Publication date :
01 January 2025
Journal title :
International Journal of Quantum Chemistry
ISSN :
0020-7608
eISSN :
1097-461X
Publisher :
John Wiley & Sons, Hoboken, United States - New Jersey
Volume :
125
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 December 2024

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