Two New Carbazole Alkaloids from Murraya koenigii
Journal of Natural Products2003Vol. 66(3), pp. 416–418
Citations Over TimeTop 18% of 2003 papers
Abstract
Two new carbazole alkaloids named murrayanine (1) and 8,8' '-biskoenigine (2) were isolated from Murraya koenigii. The structure elucidations for 1 and 2 were carried out on the basis of 1D and 2D NMR experiments. Compound 1 was a novel carbazole alkaloid with a rare phenylpropanyl substitution. Compound 2 was a symmetrical dimer of the carbazole alkaloid koenigine and showed antiosteoporotic activity in the CAT-B model with IC(50) 1.3 microg/mL. The synthesis of 2 from koenigine was carried out through oxidative coupling using a solid state reaction.
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