Two Polyoxygenated Pyrrolylpyridine and Bipyrrole Alkaloids from Speranskia tuberculata

摘要

Two novel polyoxygenated pyrrolylpyridine and bipyrrole alkaloids, speranskilatine A l, and speranberculatine A 2, have been isolated from Speranskia tuberculata. Their structures were elucidated by spectroscopic methods including 2D NMR techniques and X-ray crystallographic analysis.