Macrocyclic Spermine Alkaloids fromVerbascum: The (E/Z)-Isomeric Pairs (−)-(S)-Verbasitrine/(−)-(S)-Isoverbasitrine and (+)-(S)-Verbametrine/(+)-(S)-Isoverbametrine: Isolation, Structure Elucidation, and Synthesis

Macrocyclic Spermine Alkaloids fromVerbascum: The (E/Z)-Isomeric Pairs (−)-(S)-Verbasitrine/(−)-(S)-Isoverbasitrine and (+)-(S)-Verbametrine/(+)-(S)-Isoverbametrine: Isolation, Structure Elucidation, and Synthesis Macrocyclic Spermine Alkaloids fromVerbascum: Isolation, Structure Elucidation, and Syntheses of the (E/Z)-Isomeric Pairs (S)-Verbasikrine/(S)-Isoverbasikrine and (S)-Verbamekrine/(S)-Isoverbamekrine Verbascenin, ein macrocyclisches Spermin‐Alkaloid aus verbascum 184. Mitteilung über organische Naturstoffe Verbacine and verballocine, novel macrocyclic spermine alkaloids from Verbascum pseudonobile Stoj. et Stef. (Scrophulariaceae) Separation of E-Z isomeric macrocyclic spermine alkakoids of Verbascum pseudonobile and Verbascum phoeniceum and of their derivatives using thin-layer chromatography Verbaskine, a macrocyclic spermine alkaloid of a novel type from Verbascum pseudorobile Stoj. et Stef. (Scrophulariaceae) Verballoscenine, the Z isomer of verbascenine from Verbascum phoeniceum Five novel macrocyclic spermine alkaloids from incarvillea sinensis Veramine, a novel type of veratrum alkaloid with a 17β-methyl-18-nor-17-iso-spirosolane skeleton (+)-Verussurine, a New Steroidal Alkaloid from the Roots and Rhizomes of Veratrum nigrum var. ussuriense and Structure Revision of (+)-Verabenzoamine