A Unique Indolo‐[1,7]naphthyridine Alkaloid from Incarvillea mairei var. grandiflora (Wehrh.) Grierson
Helvetica Chimica Acta
2010.0
Abstract
A novel alkaloid with a unique indolo-[1,7]naphthyridine nucleus, incargranine B, was isolated from the whole plant of Incarvillea mairei var. grandiflora (WEHRH.) GRIERSON. Its structure was determined by means of spectroscopic methods.