A New Diterpenoid Alkaloid from the Roots of a White‐Flowering Aconitum orientale Sample

From the roots of a white‐flowering Aconitum orientale Miller sample, collected in Artvin‐Şavşat, Turkey, a new diterpenoid alkaloid named aconitorientaline ( 1 ) was isolated, along with the known diterpenoid alkaloids septentiriodine, lappaconitine, finaconitine, ranaconitine, puberanidine and delstaphinine ( Fig. ). The structure of 1 was established on the basis of 1 H‐ and 13 C‐NMR, DEPT, 1 H, 1 H‐COSY, NOESY, HSQC, and HMBC studies. All the known compounds were identified by comparison of their 1 H‐ and 13 C‐NMR data and co‐TLC behavior with those of authentic samples.