Results 21 to 30 of about 540 (159)

Some recent work on Schiff bases, imines and iminium salts in synthetic heterocyclic chemistry - a review [PDF]

, 1984
This review summarizes the versatile use of Schiff bases, imines and iminium salts for synthesizing a great variety of heterocyclic compounds. Addition reactions of Schiff bases with acid anhydrides, acid chlorides and esters have led to the synthesis of
Pramila, Manakkal S., Natarajan, Sankaran, Govindachari, Tuticorin R., Nagarajan, Kuppusuaniy, Rajesuari, Sundaramoorthy, Chandrasekaran, Sundaram, Pai, Bantual R., Chinnasamy, Pennamuthiriar   +7 more
core   +1 more source

Palladium-katalysierte Funktionalisierung und Zyklisierung sowie Säure-vermittelte Zykloisomerisierung von Chinolin-Derivaten [PDF]

, 2019
Die Arbeit befasst sich mit der Palladium-katalysierten sowie der Brønsted-Säure-vermittelten Zyklisierung von Chinolinen. Die Indolochinoline konnten durch eine Palladium-katalysierte Suzuki-Miyaura-Reaktion, gefolgt von einer Buchwald-Hartwig ...
Janke, Sophie (gnd: 1200998308)
core   +1 more source

Synthesis and Antileukemia Activity Evaluation of Benzophenanthridine Alkaloid Derivatives

Molecules, 2022
Thirty-three benzophenanthridine alkaloid derivatives (1a–1u and 2a–2l) were synthesized, and their cytotoxic activities against two leukemia cell lines (Jurkat Clone E6-1 and THP-1) were evaluated in vitro using a Cell Counting Kit-8 (CCK-8) assay.
Tang, Yaling, Xu, Xinglian, Li, Jiang, Deng, Lulu, Mu, Shuzhen   +4 more
openaire   +3 more sources

Rearrangements of Cyclobutenones. Synthesis of N-Methyl-7,8-dihydrobenzophenanthridine-9,12-diols and Related Compounds

, 2016
A useful synthetic route to benzophenanthridines and annulated derivatives is reported. These arise from the thermolysis (refluxing chlorobenzene) of squaric acid-derived 4-(3-N-methyl-N-arylpropynyl)-cyclobutenones via a mechanism which involves an ...
Antonio R. Hergueta (3029541), Harold W. Moore (3003804)   +1 more
core   +1 more source

Antitumor effects of the benzophenanthridine alkaloid sanguinarine: Evidence and perspectives

World Journal of Gastrointestinal Oncology, 2016
Historically, natural products have represented a significant source of anticancer agents, with plant-derived drugs becoming increasingly explored. In particular, sanguinarine is a benzophenanthridine alkaloid obtained from the root of Sanguinaria canadensis, and from other poppy Fumaria species, with recognized anti-microbial, anti-oxidant and anti ...
GAZIANO, ROBERTA, MORONI, GABRIELLA, Buè, C, Miele, Mt, SINIBALDI VALLEBONA, PAOLA, PICA, FRANCESCA   +5 more
openaire   +4 more sources

A New Benzophenanthridine Alkaloid from Caloncoba Glauca [PDF]

Natural Product Communications, 2017
Three alkaloids including a new one, N-formyldihydrochelerythrine (1), together with four other known compounds were isolated from the stem bark of Caloncoba glauca. The structure of the new compound was elucidated from spectroscopic and mass spectrometric evidence. This is the first report of alkaloids from the genus Caloncoba.
Jabar B P A A, Agbo, James D S, Mpetga, Raphael, Bikanga, Roland T, Tchuenguem, Rolande B N, Tsafack, Maurice D, Awouafack, Jean P, Dzoyem, Takuya, Ito, Hiroyuki, Morita, Pierre, Tane   +9 more
openaire   +2 more sources

Pharmacological Targets for Periodontitis: A Systematic Review of Drug‐Target Mendelian Randomisation Studies

Journal of Periodontal Research, EarlyView.
This systematic review evaluated drug‐target Mendelian randomisation studies on periodontitis. Twelve studies identified host‐response‐related targets mainly involved in inflammatory, complement, and immune pathways. Although some targets were linked to existing drugs, the evidence remains preliminary and heterogeneous, requiring replication and ...
Luigi Nibali, Jing Kang, Simon Haworth, Alessandro Polizzi, Gaetano Isola   +4 more
wiley   +1 more source

Cytotoxicity of benzophenanthridine alkaloids from the roots of Zanthoxylum nitidum (Roxb.) DC. var. fastuosum How ex Huang

, 2015
This work aimed to investigate benzophenanthridine from the roots of Zanthoxylum nitidum (Roxb.) DC. var. fastuosum How ex Huang for the first time. Thirteen benzophenanthridines were isolated, and our results of the cytotoxic activities indicated that ...
Cheng-Fang Wang (621937), Li Fan (170266), Mei Tian (74253), Yong-yan Wang (132075), Zhi-Wei Deng (621938), Jiang-Bin Feng (688634), Shu-Shan Du (621939), Xu Su (688635)   +7 more
core   +1 more source

The Ca2+‐CAMTA6‐PP2C49‐HKT1;1 signaling axis modulates ion homeostasis during Arabidopsis seed germination under salt stress

The Plant Journal, Volume 127, Issue 1, July 2026.
SUMMARY Soil salinization severely constrains seedling establishment by disrupting cellular Na+/K+ homeostasis. Calcium (Ca2+) signaling contributes to the re‐establishment of ion balance during early growth, yet the mechanisms linking Ca2+ perception to ion transport regulation remain unclear.
Yvonne Kiere, Ancy E. J. Chandran, Guy Sobol, Omer Cremer, Shaked Azoulay‐Portal, Yonatan Wexler, Doron Shkolnik   +6 more
wiley   +1 more source

Phytochemicals in Asthma Management: Mechanism, Translational Gap and Clinical Integration

Phytochemicals in Food and Medicine, Volume 1, Issue 2, June 2026.
The phytochemicals including flavonoids, alkaloids, terpenoids, and saponins modulate inflammatory, oxidative, and immune pathways in asthma. It highlights their mechanisms of action, translational challenges, advanced formulation strategies, and emerging clinical potential as adjunct therapies for precision‐based asthma management.
Pulak Majumder, Trisita Majumder
wiley   +1 more source