1 Centro CNR per lo studio della Chimica delle Sostanze Organiche Naturali - Dipartimento di Chimica, Universita' La Sapienza, p. le A. Moro 2, I-00185 Roma, Italy.
From ARGYLIA RADIATA a non-glycosidic iridoid, the (4a S, 7 S, 7a S)-7-hydroxy-7-methyl-1,4a,5,6,7,7a-heptahydrocyclopenta[ C]pyran-3(4 H)-one, and a bisiridoid, derived from the junction of catalpol and 7-deoxyloganic acid, were isolated.