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Current Organic Chemistry


ISSN (Print): 1385-2728
ISSN (Online): 1875-5348

Biologically Active Mesomeric Betaines and Alkaloids, Derived from 3- Hydroxypyridine, Pyridin-N-oxide, Nicotinic Acid and Picolinic Acid: Three Types of Conjugation and Their Consequences

Author(s): Andreas Schmidt

Volume 8, Issue 8, 2004

Page: [653 - 670] Pages: 18

DOI: 10.2174/1385272043370663

Price: $65


Betainic pyridinium alkaloids and analogs are members of the four major classes of heterocyclic mesomeric betaines, i.e. conjugated (CMB), cross-conjugated (CCMB), pseudo-cross-conjugated heterocyclic mesomeric betaines (PCCMB), and conjugated Nylides and thus offer the possibility of detailed comparisons of the types of conjugation. The chemistry of these systems is surveyed.

Keywords: mesomeric betaines, alkaloids, 3- hydroxypyridine, pyridin-n-oxide, picolinic acid

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