TOTAL SYNTHESES AND ANTIMICROBIAL ACTIVITIES OF PYRIDINE ALKALOIDS FROM RUBIACEAE

Authors
Citation
F. Bracher et T. Papke, TOTAL SYNTHESES AND ANTIMICROBIAL ACTIVITIES OF PYRIDINE ALKALOIDS FROM RUBIACEAE, Monatshefte fuer Chemie, 126(6-7), 1995, pp. 805-809
Citations number
12
Categorie Soggetti
Chemistry
Journal title
ISSN journal
00269247
Volume
126
Issue
6-7
Year of publication
1995
Pages
805 - 809
Database
ISI
SICI code
0026-9247(1995)126:6-7<805:TSAAAO>2.0.ZU;2-X
Abstract
Pyridine alkaloids from Rubiaceae were prepared by palladium-catalyzed cross-coupling reactions of methyl 5-bromonicotinate (6) with various organometallic reagents. Baker's yeast reduction of the ketone 8 gave the levorotatory alcohol (S)-1. On this basis, the naturally occuring alcohol(+)-1 was assigned to be (R)-configurated. The alkaloids 1 and 4 show weak antimicrobial activities.