Amide-esters from Aglaia tenuicaulis - First representatives of a class of compounds structurally related to bisamides and flavaglines

Six amide-esters and two bisamides were isolated from Aglaia tenuicaulis together with two bisamides from A. spectabilis and their structures were elucidated by spectroscopic methods. The co-occurrence of amide-esters and bisamides suggests close biosynthetic connections with putrescine as basic skeleton linked to various acids.