Leaves of Cocculus pendulus have yielded eight new bisbenzylisoquinoline alkaloids, namely (+)-kohatamine, (+)-1,2-dehydrokohatine, (+)-1,2-dehydrokohatamine, (+)-5'-hydroxyapateline, (+)-5′-hydroxytelobine, (+)-1,2-dehydro-2′-nortelobine, (+)-siddiquine and (+)-siddiquamine. © 1987.