Abstract
Pressalanine A (1), a new Michelia aristolactam, and pressalanine B (2), a new Michelia dioxoaporphine, have been isolated from Michelia compressa var. lanyuensis (Magnoliaceae), and these structures were determined on the basis of spectroscopic analysis.
Acknowledgements
This investigation was supported by a grant from the National Science Council of the Republic of China (NSC-96-2320-B-242-005) and Fooyin University (AH-97003).