Actinodaphne longifolia

The chains of some fliranoid famesane derivatives are terminated by furan rings. Dendrolasin from sweet potatoes, also isolated from some marine snails, for example, is an alarm and defense pheromone of the ant Dendrolasius fulginosus. Ses-quirosefuran and longifolin occur in the leaves of Actinodaphne longifolia. 

The second sample of Pleraplysilla spinifera contains longifolin (39), previously found in a terrestrial plant, Actinodaphne longifolia, by Hayashi et al. 113), and two more cyclic furanosesquiterpenes (57). On the basis of a careful n.m.r. examination, alternative structures (40a) and (40b) and (41a) and (41b), respectively, containing carbon skeletons of a new sesquiterpenoid have been proposed for the two polycyclic components which were designated spiniferin-2 and -1. 

Hayashi, H., H. Komal, S. Eguchi, M. Nakayama, S. Hayaschi, and T. Sakao Two New Furanosesquiterpenes from Actinodaphne longifolia (Blume) Nakai. Chemistry and Industry 1972, 572. 

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