D. Arbain et Mv. Byrne Lt",dachriyanus,"sargent, ISOMALINDINE-16-CARBOXYLATE, A ZWITTERIONIC ALKALOID FROM OPHIORRHIZACF. COMMUNIS, Australian Journal of Chemistry, 50(11), 1997, pp. 1109-1110
Extraction of the aerial parts of Ophiorrhiza cf. communis Linn. (Rubi
aceae) has yielded the new quaternary zwitterionic alkaloid isomalindi
ne-16-carboxylate (3), the structure of which followed from its spectr
oscopic properties.