Premium
Eburnane‐14‐spiro heterocycles. Synthesis and stereostructure determination by NMR spectroscopy
Author(s) -
Nemes András,
Sohár Pál,
Kövesdi István,
Czibula László,
Csehi Attila,
Kreidl János
Publication year - 1993
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260310420
Subject(s) - chemistry , dept , nuclear magnetic resonance spectroscopy , alkyl , stereochemistry , spectroscopy , two dimensional nuclear magnetic resonance spectroscopy , organic chemistry , physics , quantum mechanics
New spiroheterocyclic systems, eburnane‐14‐spiro‐5′‐oxazolidinedione, eburnane‐14‐spiro‐4′‐imidazolidinedione and related compounds were prepared by reacting vincamine stereoisomers or 14‐desoxy‐14‐aminovincamines with alkyl isocyanates. Stereostructures of the new compounds were proved by 1 H and 13 C NMR spectroscopy, including DR, DNOE, DEPT and 2D HSC measurements.