Isoquinoline alkaloids: a 15N NMR and x-ray study. Part 2

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Authors	MAREK Radek MAREK Jaromír DOSTÁL Jiří TÁBORSKÁ Eva SLAVÍK Jiří DOMMISSE Roger
Year of publication	2002
Type	Article in Periodical
Magazine / Source	Magnetic Resonance in Chemistry
MU Faculty or unit	Faculty of Science
Citation
Web	http://www3.interscience.wiley.com/cgi-bin/abstract/98518855/START
Field	Organic chemistry
Keywords	alkaloid; isoquinoline; 15N NMR; X-ray
Description	Continuing our systematic 15N NMR study of isoquinoline alkaloids, we report a contribution extending our previous paper. The 15N NMR chemical shifts and 15N,1H long-range coupling pathways of tertiary and quaternary isoquinoline alkaloids of several constitutional types are presented. The selected compounds belong to the protoberberine, proaporphine, pavinane, rhoeadine and phtalideisoquinoline classes of alkaloids and were investigated by gradient-selected inverse-detected multiple bond correlation experiments (GHMBC and GSQMBC). In addition, x-ray data and the principal geometric parameters of stylopine, mecambridine, norchelerythrine, isothebaine and mecambrine are reported and discussed.
Related projects:	Biomolecular Center