Tetrahydroisoquinoline and beta-carboline alkaloids from Haloxylon articulatum (Cav.) Bunge (Chenopodiaceae).

Salsolidine and 2-methyl,1,2,3,4-tetrahydro-beta-carboline were isolated from Haloxylon articulatum (growing in Egypt) besides the known carnegine and N-methylisosalsoline. 2-methyl,1,2,3,4-tetrahydro-beta-carboline was recorded for the first time in the genus Haloxylon. The alkaloids were identified by spectroscopic methods (MS, 1D and 2D NMR).