Monatshefte fur Chemie p. 805 - 810 (1995)
Update date:2022-08-17
Topics:
Bracher, F.
Papke, T.
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. - Keywords: Pyridine alkaloids; Palladium catalyst; Baker's yeast; Antimicrobial activity
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