Chemistry of acronycine IV. Minor constituents of acronine and the phytochemistry of the genus Acronychia.

In the course of isolating acronycine (1) from an alkaloid fraction of the bark of Acronychia baueri (Rutaceae), five alkaloids, 1,2,3-trimethoxy-10-methyl-acridone (9), 1,3,4-trimethoxy-10-methyl-acridone (10), des-N-methyl acronycine (14), normelicopine (5), and noracronycine (2), were isolated. Four of the isolates are new to the genus, and phytochemical analysis of the genus Acronychia is presented.