Results 121 to 130 of about 540 (159)

The formation of benzophenanthridine alkaloids

Pure and Applied Chemistry, 1994
Abstract
openaire   +2 more sources

An Nmr Study of Four Benzophenanthridine Alkaloids

Journal of Natural Products, 1991
A new dihydrobenzo[c]phenanthridine alkaloid, 12-methoxydihydrochelerythrine {1}, has been isolated from a lipophilic extract of the leaves of Bocconia integrifolia together with three known compounds, dihydrochelerythrine {2}, dihydrosanguinarine {3}, and dihydrochelirubine {4}.
S. M. Oechslin, G. M. König, K. Oechslin-Merkel, A. D. Wright, A. D. Kinghorn, O. Sticher, M. Miyagawa   +6 more
openaire   +1 more source

A new benzophenanthridine alkaloid from Zanthoxylum buesgenii

Fitoterapia, 2005
A new benzophenanthridine alkaloid, 6-[2'-ethoxy-2'-(2'',4'',5''-trimethoxyphenyl)] ethyl-7,8-dimethoxy-5-methyl-2,3-methylenedioxy-5,6-dihydrobenzo[c]phenanthridine named buesgeniine (1), as well as the known decarine, were isolated from the extract of the stem bark of Zanthoxylum buesgenii.
Pierre, Tane, Hippolyte K, Wabo, Joseph D, Connolly   +2 more
openaire   +2 more sources

ChemInform Abstract: SYNTHESIS OF 7,8‐BENZOPHENANTHRIDINES

Chemischer Informationsdienst, 1975
AbstractReaktion von N2O3 mit dem Cyclohexen (I) liefert das Nitrocyclohexen (II) und als Nebenprodukt das alkalilösliche Oxim (III).
N. ARUMUGAM, S. KRISHNAMURTHI, P. SHENBAGAMURTHI, S. SIVASUBRAMANIAN, M. RAMAN   +4 more
openaire   +1 more source

Molecular targets and anticancer potential of sanguinarine—a benzophenanthridine alkaloid

Phytomedicine, 2017
Cancer is an enormous global health burden, and should be effectively addressed with better therapeutic strategies. Currently, over 60% of the clinically approved anticancer agents are either directly isolated from natural sources or are modified from natural lead molecules.
Sehamuddin, Galadari, Anees, Rahman, Siraj, Pallichankandy, Faisal, Thayyullathil   +3 more
openaire   +2 more sources

Uncoupling of photosynthetic phosphorylation by benzophenanthridine alkaloids

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1973
Abstract Sanguinarine, chelerythrine and chelidonine, benzophenanthridine alkaloids, inhibited both photosynthetic phosphorylation associated with ferricyanide reduction and cyclic photophosphorylation catalyzed by phenazine methosulphate. They did not affect electron transport in the presence of ADP and Pi and stimulated it in their absence.
openaire   +2 more sources

Benzophenanthridine alkaloids from Zanthoxylum rhoifolium

Phytochemistry, 1997
A novel benzophenanthridine alkaloid, named zanthoxyline, was isolated from the bark of Zanthoxylum rhoifolium, together with the known compounds, dihydronitidine, 6-oxynitidine and skimmianine. The structure of the new compound was elucidated on the basis of spectroscopic investigations and elemental analysis.
Neusa F. de Moura, Heraldo B. Ribeiro, Emília C.S. Machado, Eduardo M. Ethur, Nilo Zanatta, Ademir F. Morel   +5 more
openaire   +1 more source

Inhibition of Reverse Transcriptase Activity by Benzophenanthridine Alkaloids

Journal of Natural Products, 1979
Benzophenanthridine alkaloids, fagaronine 4, O-methylfagaronine 5, nitidine 1, allonitidine 3 and methoxydihydronitidine 2 have been shown to posses inhibitory activity against reverse transcriptase of RNA tumor viruses. The enzyme inhibition (50%) by these alkaloids was found in the range of 6-60 microgram per milliliter of the reaction mixture when ...
openaire   +3 more sources

Identification of metabolites of selected benzophenanthridine alkaloids and their toxicity evaluation

Journal of Pharmaceutical and Biomedical Analysis, 2016
Selected benzo[c]phenathridine alkaloids were biotransformed using rat liver microsomes and identified by liquid chromatography and mass spectrometry. While the metabolites of commercially available sanguinarine and chelerythrine have been studied in detail, data about the metabolism of the minor alkaloids remained unknown.
Roman, Sandor, Adam, Midlik, Kristyna, Sebrlova, Gabriela, Dovrtelova, Kristyna, Noskova, Jan, Jurica, Iva, Slaninova, Eva, Taborska, Ondrej, Pes   +8 more
openaire   +2 more sources

Isochelidonine, a benzophenanthridine alkaloid from chelidonium majus

Phytochemistry, 1992
Abstract A new benzophenanthridine alkaloid, isochelidonine, has been isolated from Chelidonium majus and characterized mainly by spectral analysis. Isochelidonine is the first benzophenanthridine alkaloid from the Papaveraceae with C-10,11 substituents.
Salvatore De Rosa, Giuseppe Di Vincenzo
openaire   +2 more sources