Results 71 to 80 of about 1,660 (216)

Pediatric poisoning management: How clinical practice can benefit from forensic approach

Journal of Forensic Sciences, Volume 69, Issue 4, Page 1501-1507, July 2024.
Abstract Pediatric population represents the most vulnerable and at risk for unintentional poisoning, with children younger than 6 years old accounting for nearly half of poison exposures. Poisoning is a time‐dependent emergency. The need to reach a scientific agreement on diagnostic protocol and treatment seems to be crucial to reduce morbidity and ...
Pascale Basilicata, Mariagrazia Marisei, Rossella Guadagni, Michelina Sibilio, Massimo Niola, Maria Pieri   +5 more
wiley   +1 more source

Biomimetic synthesis of neodihydrothebaine and bractazonine from thebaine

, 1984
Photochemical irradiation of the morphinan alkaloid thebaine 1 followed by reduction, affords the dibenz[d,f]azonine alkaloids neodihydrothebaine 2 and bractazonine 3, in a sequence paralleling the proposed biosynthesis of these alkaloids in Papaver ...
Theuns, H.G., Michael C. ten Noever de Brauw, Salemink, C.A., Noever de Brauw, M.C. ten, Guus F. La Vos, La Vos, G.F., Hubert G. Theuns, Cornelis A. Salemink   +7 more
core   +1 more source

Comparison of Morphinan Alkaloids During Different Stages of Growth in the Medicinal Plant Opium Poppy (Papaver somniferum L.)

Journal of Medicinal Plants, 2012
Background: Opium poppy contains important pharmaceutical alkaloids such as Morphine, Codeine, Thebaine, Noscapine, Papaverine and Sanguinarine which are of a high economic value in pharmaceutical industries.
M Omidi, F Koohzadi, M Solouki, R Taghizad Farid, H Alizadeh   +4 more
doaj  

N-Demethylation and N-oxidation of thebaine, an isoquinoline alkaloid by Mucor piriformis

, 2000
Northebaine was identified as the major metabolite formed during the biotransformation of thebaine by Mucor piriformis. Minor metabolites identified are isomeric thebaine N-oxides.
Sridhar, GR, Madyastha, KM, Reddy, GVB, Nagarajappa, H   +3 more
core  

Semi-synthesis of novel thebaine derivatives with low cytotoxicity and their antibacterial and antihemolytic properties

, 2023
In the present study, some new 1,2,3-triazole-tethered analogs of N-northebaine were designed and synthesized. The anti-bacterial properties of novel thebaine derivatives were studied on Staphylococcus aureus (S. aureus) and Escherichia coli (E.
Atousa Aliahmadi, Hossein Behboodi, Dan Staerk, Behboodi, Hossein, Morteza Bararjanian, Zahra Hasanpour, Aliahmadi, Atousa, Bararjanian, Morteza, Hoseinpour, Mahdieh, Staerk, Dan, Peyman Salehi, Salehi, Peyman, Mahdieh Hoseinpour, Hasanpour, Zahra   +13 more
core   +1 more source

Alkaloid Accumulation and Distribution within the Capsules of Two Opium Poppy (Papaver somniferum L.) Varieties

Plants
The goal of this study was to clarify the role of capsule size and morphology in the alkaloid yield of poppy. In 2023, two industrial varieties from large-scale cultivation were investigated.
Péter Májer, Éva Zámboriné Németh
doaj   +1 more source

Fast and selective HPLC-DAD method for determination of pholcodine and related substances

Macedonian Journal of Chemistry and Chemical Engineering, 2011
Quality control of pharmaceuticals requires development of fast, efficient and reliable methods for determination of active compounds as well as known and very often unknown impurities within defined concentration ranges. In this work, a simple and rapid
Ana Petkovska, Hristina Babunovska, Marina Stefova   +2 more
doaj   +1 more source

The preparation and some reactions of the irontricarbonyl complex of thebaine

, 1969
The methoxycyclohexadiene ring of thebaine readily complexes with Fe(CO)3 to give (I; R = Me). This group alters the reactivity of the thebaine molecule in a number of ways, protecting the diene system and permitting ready fission of the cyclic ether to ...
AJ Birch, H Fitton
core   +1 more source

ALKALOIDS OF PAPAVERACEAE (XVI) [I]. ALKALOIDS OF PAPAVER FUGAX POPULATION TAROM [PDF]

Journal of Sciences, Islamic Republic of Iran, 1997
Papaverfugax Poiret population Tarom was shown to contain one major alkaloid, mecamberine (0.4%), and six minor alkaloids, roemerine, pronuciferine, protopine, thebaine, nornuciferine and salutaridine.
doaj  

Chemometric approach for development, optimization and validation of HILIC methods used for the determination of alkaloids from poppy straw

Macedonian Journal of Chemistry and Chemical Engineering, 2014
Two hydrophilic interaction liquid chromatography (HILIC) methods for simultaneous determination of the major alkaloids (morphine, codeine, thebaine, oripavine, papaverine and noscapine) in opium poppy straw (Papaver somniferum L., Papaveraceae) were ...
Jelena Acevska, Gjoshe Stefkov, Natalija Nakov, Rumenka Petkovska, Liljana Ugrinova, Svetlana Kulevanova, Aneta Dimitrovska   +6 more
doaj   +1 more source