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Title
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Isoquinoline alkaloids : NMR and x-ray study. Part 2
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Author
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Abstract
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| Continuing our systematic N-15 NMR study of isoquinoline alkaloids, we report a contribution extending our previous paper. The N-15 NMR chemical shifts and N-15,H-1 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. Copyright (C) 2002 John Wiley Sons, Ltd. |
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Language
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English
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Source (journal)
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Magnetic resonance in chemistry. - Chichester
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Publication
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Chichester
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2002
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ISSN
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0749-1581
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DOI
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10.1002/MRC.1084
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Volume/pages
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40
:11
(2002)
, p. 687-692
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ISI
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000178816300002
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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