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■ Royleinine, a New Norditerpenoid Alkaloid from Delphinium roylei

Ayhan Ulubelen,* Ali H. Meriçli, Filiz Meriçli, Ufuk Kolak, Muhammed Arfan, Manzoor Ahmad, and Habib Ahmad

*Faculty of Pharmacy, University of Istanbul, 34452 Istanbul, Turkey

Abstract

A new norditerpenoid alkaloid, royleinine (1) has been isolated from the aerial parts of Delphinium roylei Munz, along with three more norditerpenoid alkaloids, isotalitazidine, condelphine and senbusine-C. The structure of 1 has been established on the basis of its spectroscopic data (IR, HRMS, ¹H, ¹³C, ¹H - ¹H and ¹H - ¹³C COSY and NOESY spectra).