title: [Transformation of indole alkaloids. II. On the C-D ring opening and closing reactions of indole alkaloids and the syntheses of vobasine type alkaloids (author's transl)].
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003500:Cyclization; D007211:Indoles; D015016:Yohimbine / Q000138:chemical synthesis*
chemical_list: D007211:Indoles; D015016:Yohimbine