Results 31 to 40 of about 5,363,495 (332)

Application of aza-BODIPY as a Nitroaromatic Sensor

open access: yesACS Omega, 2023
Nitroaromatic explosive detection with high sensitivity and selectivity is requisite for civilian and military safety and the ecosystem. In this study, aza boron dipyrromethene (aza-BODIPY) dye was selected as a fluorescent-based chemosensor against ...
Bleda Can Sadikogullari   +4 more
semanticscholar   +1 more source

Conductance Behavior of Tetraphenyl-Aza-BODIPYs

open access: yes, 2020
We studied the electrical conductance of single-molecule junctions formed from molecular wires with four anchor groups. Three tetraphenyl-aza-BODIPYs with four or two thiomethyl anchor groups were synthesized, and their single-molecule conductance was ...
Dmitry S. Yufit (1478953)   +9 more
core   +1 more source

Aza-Oxyallyl Cation Driven 3‑Amido Oxetane Rearrangement to 2‑Oxazolines: Access to Oxazoline Amide Ethers

open access: yes, 2022
Herein, we report a highly facile and unprecedented activation of 3-amido oxetanes to synthesize 2-oxazoline amide ethers using a transient electrophilic aza-oxyallyl cation as an activating as well as an alkylating agent under mild reaction conditions.
Debarshi Saha (12054614)   +2 more
core   +2 more sources

Heterocycles [h]-Fused Onto 4-Oxoquinoline-3-Carboxylic Acid, Part VIII [1]. Convenient Synthesis and Antimicrobial Properties of Substituted Hexahydro[1,4]diazepino[2,3-h]quinoline-9-carboxylic acid and Its Tetrahydroquino[7,8-b]benzodiazepine Analog

open access: yesMolecules, 2008
[1,4]Diazepino[2,3-h]quinolone carboxylic acid 3 and its benzo-homolog tetrahydroquino[7,8-b]benzodiazepine-3-carboxylic acid 5 were prepared via PPAcatalyzed thermal lactamization of the respective 8-amino-7-substituted-1,4-dihydroquinoline-3-carboxylic
Yusuf M. Al-Hiari   +2 more
doaj   +1 more source

Mycophenolic acid and 6-mercaptopurine both inhibit B-cell proliferation in granulomatosis with polyangiitis patients, whereas only mycophenolic acid inhibits B-cell IL-6 production.

open access: yesPLoS ONE, 2020
Granulomatosis with polyangiitis (GPA) is an autoimmune disease affecting mainly small blood vessels. B-cells are important in the GPA pathogenesis as precursors of autoantibody-producing cells but likely also contribute (auto)antibody-independently ...
Anouk von Borstel   +7 more
doaj   +1 more source

Cytotoxic Steroidal Saponins from the Flowers of Allium leucanthum

open access: yesMolecules, 2008
Allium leucanthum C. Koch is an endemic Caucasian species that grows in Georgia. The flowers are used in traditional medicine. Phytochemical investigation allowed the isolation of seven spirostanol type saponins from the flowers.
Jean Legault   +6 more
doaj   +1 more source

Chemical Study of the Essential Oil of Mutisia Friesiana

open access: yesMolecules, 2000
The composition of essential oil of Mutisia friesiana (Asteracae) was studied. The oil is a complex system in which 127 compounds were identified. The major components are monoterpenes: b-phellandrene, (Z)-β-ocimene, α and β-pinene and sabinene.
J. De la Fuente, C. I. Viturro
doaj   +1 more source

Recent advances on synthesis and biological activities of C-17 aza-heterocycle derived steroids.

open access: yesBioorganic & Medicinal Chemistry, 2022
Steroids modification for improving their biological activities is one of the most efficient and fruitful methods to develop novel medicines. Steroids with aza-heterocycles attaching to the C-17 owing various biological activities have received great ...
Haibo Huo, Guixia Li, Bao-Jun Shi, J. Li
semanticscholar   +1 more source

New Triterpene Diglycosides from the Rhizome of Cimifuga foetida

open access: yesMolecules, 2008
Five new 9,19-cycloartane triterpene diglycosides, which have been named cimiaceroside C (1), and cimifosides A-D (2-5) together with the known compounds cimiracemoside D (6), cimidahurine (7) and α-D-glucopyranosyl-l-β-D-fructofuranoside (8) were ...
Minghua Qiu   +5 more
doaj   +1 more source

Aza-Triangulene: On-Surface Synthesis and Electronic and Magnetic Properties

open access: yes, 2022
Nitrogen heteroatom doping into a triangulene molecule allows tuning its magnetic state. However, the synthesis of the nitrogen-doped triangulene (aza-triangulene) has been challenging. Herein, we report the successful synthesis of aza-triangulene on the
Jan Patrick Calupitan   +19 more
core   +1 more source

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