About: Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach

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Description	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. 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)
Title	Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach (en)
skos:prefLabel	Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach (en)
skos:notation	RIV/00216224:14310/10:00045049!RIV11-MSM-14310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(LC06030), S, Z(MSM0021622413)
http://linked.open...iv/cisloPeriodika	47
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Šolomek, Tomáš Maier, Lukáš Nečas, Marek Pipíška, Matej Marek, Radek Kříž, Zdeněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	290452
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/10:00045049
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Barrier to rotation; Berberine; Low-temperature NMR spectroscopy; Nucleus-independent chemical shift; Palmatine; Theoretical calculations (en)
http://linked.open.../riv/klicoveSlovo	Berberine Nucleus-independent chemical shift Barrier to rotation Low-temperature NMR spectroscopy Palmatine Theoretical calculations
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[5E173FE9EE84]
http://linked.open...i/riv/nazevZdroje	Tetrahedron
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Biomolecular centre
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	66
http://linked.open...iv/tvurceVysledku	Marek, Radek Nečas, Marek Pipíška, Matej Šolomek, Tomáš Kříž, Zdeněk Maier, Lukáš
http://linked.open...ain/vavai/riv/wos	000284499400025
http://linked.open...n/vavai/riv/zamer	Proteiny v metabolismu a při interakci organismů s prostředím
issn	0040-4020
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	14310
is http://linked.open...avai/riv/vysledek of	Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach Structural study of 8-azole derivatives of protoberberine alkaloids: experimental and quantum chemical approach

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