Results 31 to 40 of about 1,143 (191)

Methyl (4-bromobenzenesulfonamido)acetate

open access: yesActa Crystallographica Section E, 2008
The title compound, C9H10BrNO4S, is an intermediate for the formation of benzothiazines. In the crystal structure, intermolecular N—H...O hydrogen bonds link the molecules, forming R22(10) ring motifs, which are linked into a two-dimensional ...
Muhammad Shafiq   +4 more
doaj   +1 more source

Efficient Syntheses of Diverse N-Heterocycles: The Molybdenum(VI)-Catalyzed Reductive Cyclization of Nitroarenes using Pinacol as a Deoxygenating­ Agent

open access: yesSynOpen, 2018
Molybdenum(VI)-catalyzed domino reductive cyclization of nitroarenes has been devised for the syntheses of 1,4-benzoxazines and 1,4-benzothiazines in the presence of pinacol as deoxygenating agent.
Raghuram Gujjarappa   +6 more
doaj   +1 more source

Ring Expansion of 2-Chloromethylbenzothiazole: Synthesis of Alkylidene 1,4-benzothiazines

open access: yes, 1995
The title heteroalkylidene dihydro-1,4-benzothiazines 7 have been prepared from heteroarylalkyllithium 4 and 2-chloromethylbenzothiazole
Florio S   +5 more
core   +1 more source

Methyl 4-ethoxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide

open access: yesActa Crystallographica Section E, 2008
In the crystal structure of the title compound, C13H15NO5S, the molecules exhibit weak S=O...H—C and C=O...H—C intermolecular interactions and arrange themselves into centrosymmetric dimers by means of π–π interactions (ring ...
Muhammad Zia-ur-Rehman   +4 more
doaj   +1 more source

Beyond Molecular Determinism: State‐Convergent Polymerization as a Functional Design Principle Under Chemical Complexity

open access: yesAdvanced Science, Volume 13, Issue 38, 9 July 2026.
This work introduces state‐convergent polymerization (SCP), a polymerization framework in which chemically diverse reaction pathways converge toward a reproducible functional polymeric state rather than a defined molecular structure. Using melanin and polydopamine as exemplars, SCP explains how robust polymer functions emerge under chemical and ...
Seonki Hong
wiley   +1 more source

N-(3,4-Dimethylphenyl)-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

open access: yesActa Crystallographica Section E, 2009
1,2-Benzothiazines similar to the title compound, C18H18N2O4S, are well known in the literature for their biological activities and are used as medicines in the treatment of inflammation and rheumatoid arthritis. The thiazine ring adopts a distorted half-
Waseeq Ahmad Siddiqui   +4 more
doaj   +1 more source

High‐Resolution Elemental Analysis of Neuromelanin‐Containing Organelles in Human Locus Coeruleus

open access: yesJournal of Neurochemistry, Volume 170, Issue 7, July 2026.
Created in https://BioRender.com. Neuromelanin (NM), a dark metal‐chelating pigment in the brain, has long been of interest for its potential roles in aging and Parkinson's disease. In this study, we explored NM‐containing neurons (NM neurons) in the human locus coeruleus at unprecedented resolution.
Zahraa Berro   +11 more
wiley   +1 more source

Microglial dynamics and ferroptosis induction in human iPSC‐derived neuron–astrocyte–microglia tri‐cultures

open access: yesFEBS Open Bio, Volume 16, Issue 6, Page 1060-1073, June 2026.
A tri‐culture of iPSC‐derived neurons, astrocytes, and microglia treated with ferroptosis inducers as an Induced ferroptosis model was characterized by scRNA‐seq, cell survival, and cytokine release assays. This analysis revealed diverse microglial transcriptomic changes, indicating that the system captures key aspects of the complex cellular ...
Hongmei Lisa Li   +6 more
wiley   +1 more source

Evaluation of Hemoadsorption Capacity of the CytoSorb Adsorber for Toxic Doses of Diclofenac and Meloxicam in Porcine Plasma

open access: yesJournal of Clinical Apheresis, Volume 41, Issue 3, June 2026.
ABSTRACT The objective of this in vitro experimental was to determine the utility of hemoadsorption (HA) using the CytoSorb adsorber to remove meloxicam and diclofenac from porcine plasma. For this purpose 12 1‐L aliquots of porcine plasma, 6 units were spiked with 293 μg/mL (262–320 μg/mL) diclofenac and 6 with 42.8 μg/mL (41.4–44.7 μg/mL) meloxicam ...
Bettina Giani   +3 more
wiley   +1 more source

Photochemical ring contraction of dihydro-1,4-benzothiazines.

open access: yes, 1994
The pheomelanin precursor 1a and the related dihydro-1,4-benzothiazines 1b-f undergo ring contraction upon irradiation with pyrex-filtered UV light to give 2-methylbenzothiazoles 2a-f in good ...
C. COSTANTINI   +10 more
core   +1 more source

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