Two new steroidal alkaloids from Veratrum nigrum var. ussuriense

Two new steroidal alkaloids from Veratrum nigrum var. ussuriense (+)-Verussurine, a New Steroidal Alkaloid from the Roots and Rhizomes of Veratrum nigrum var. ussuriense and Structure Revision of (+)-Verabenzoamine (+)-Verussurine, a New Steroidal Alkaloid from the Roots and Rhizomes of <i>Veratrum </i><i>n</i><i>igrum</i> var. <i>u</i><i>ssuriense</i> and Structure Revision of (+)-Verabenzoamine Studies on the constituents of Veratrum plants. II. Constituents of Veratrum nigrum L. var. ussuriense. (1). Structure and 1H- and 13C-nuclear magnetic resonance spectra of a new alkaloid, verussurinine, and related alkaloids. Studies on the constituents of Veratrum plants. II. Constituents of Veratrum nigrum L. var. ussuriense. (1). Structure and 1H- and 13C-nuclear magnetic resonance spectra of a new alkaloid, verussurinine, and related alkaloids. (−)-Veranigrine, a new steroidal alkaloid from Veratrum nigrum L. (−)-Veranigrine, a new steroidal alkaloid from Veratrum nigrum L. Two New Steroidal Alkaloids from Veratrum nigrum L. Steroidal Alkaloids from the Roots and Rhizomes of Vertrum nigrum L. Steroidal alkaloids from Veratrum nigrum