Five new alkaloids related to bishordeninyl terpenes, (N,N′-demethylalfileramine, N,N′-demethylculan-traramine, N,N-demethylisoalfileramine, N′-demethylalfileramine, N-demethylalfileramine, and one new monomeric alkaloid 4-(2-N-methyltyraminyl)-(Z)-1,2-epoxy-2-methylbut-3-ene were isolated from the methanolic extract of the leaves of Zanthoxylum coriaceum. These are very closely related to alfileramine, previously isolated as the major leaf component. The structures were determined by spectroscopic analysis and by chemical correlations. © 1990.