"GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . "New derivatives of protoberberine alkaloids were prepared by nucleophilic addition of some azoles to the iminium functionality of the quaternary protoberberine alkaloids. Compounds were structurally characterized mainly by 1H and 13C NMR spectroscopy. Additionally, conformational behaviors of selected derivatives varying in bulkiness of the azole moiety have been investigated by low temperature NMR spectroscopy and quantum chemical calculations. Ring current effects of pyrrole and carbazole moieties on selected 1H NMR resonances have been characterized, visualized, and discussed."@en . . . "6"^^ . . "6"^^ . "47" . "Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach"@en . "New derivatives of protoberberine alkaloids were prepared by nucleophilic addition of some azoles to the iminium functionality of the quaternary protoberberine alkaloids. Compounds were structurally characterized mainly by 1H and 13C NMR spectroscopy. Additionally, conformational behaviors of selected derivatives varying in bulkiness of the azole moiety have been investigated by low temperature NMR spectroscopy and quantum chemical calculations. Ring current effects of pyrrole and carbazole moieties on selected 1H NMR resonances have been characterized, visualized, and discussed." . "P(LC06030), S, Z(MSM0021622413)" . . . . "Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach"@en . . . "Maier, Luk\u00E1\u0161" . . "290452" . "RIV/00216224:14310/10:00045049" . . "Pip\u00ED\u0161ka, Matej" . . "RIV/00216224:14310/10:00045049!RIV11-MSM-14310___" . "0040-4020" . . "K\u0159\u00ED\u017E, Zden\u011Bk" . "Ne\u010Das, Marek" . . . "Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach" . . . "000284499400025" . . "14310" . "Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach" . "Tetrahedron" . "\u0160olomek, Tom\u00E1\u0161" . "Barrier to rotation; Berberine; Low-temperature NMR spectroscopy; Nucleus-independent chemical shift; Palmatine; Theoretical calculations"@en . . . . . . . "66" . "[5E173FE9EE84]" . "9"^^ . . . "Marek, Radek" .