From the fruits of Alangium lamarckii, seven novel tetrahydroisoquinoline-monoterpene glucosides, 2'-O-trans-feruloyldemethylalangiside, 2'-O-trans-feruloylalangiside, 2'-O-trans-feruloyl-3-O-demethyl-2-O-methylalangiside, 2'-O-trans-sinapoyldemethylalangiside, 2'-O-trans-sinapoylalangiside, 2'-O-trans-sinapoyl-3-O-demethyl-2-O-methylalangiside and 2'-O-trans-[4-(1,3-dihydroxypropoxy)-3-methoxycinnamoyl]alangiside, were isolated and their structures determined on the basis of spectroscopic methods.