Aztequine

T. Kametani, H. Terasawa, M. Ihara, and J. Iriarte, Phytochemistry 14, 1884 (1975). These workers failed to obtain aztequine from the reported source, Talauma mexicana. 

The Faltis theory explains the biological synthesis of all the bisbenzyliso-quinoUne alkaloids except two. The proposed structures of these two (magnolamine and aztequine) contain one more hydroxyl group than a compound formed from two molecules of norcoclaurine (II) by enzymatic dehydrogenation. However, in these cases it may be assumed that the extra hydroxyl is introduced into the molecule either before or after ether formation. Furthermore, the formation of trilobine and of isotrilobine... 

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