Results 91 to 100 of about 191,241 (287)

New Synthesis, Structure and Analgesic Properties of Methyl 1-R-4-Methyl-2,2-Dioxo-1H-2λ6,1-Benzothiazine-3-Carboxylates

open access: yesScientia Pharmaceutica, 2017
According to the principles of the methodology of bioisosteric replacements a series of methyl 1-R-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylates has been obtained as potential analgesics.
Liliana Azotla-Cruz   +5 more
doaj   +1 more source

Peripherally-metallated porphyrins: meso-n1-porphyrinyl-platinum(II) complexes of 5,15-diaryl- and 5,10,15-triarylporphyrins [PDF]

open access: yes, 2002
Attempted metathesis reactions of peripherally-metallated meso-η1-porphyrinylplatinum(II) complexes such as trans-[PtBr(NiDPP)(PPh3)2] (H2DPP = 5,15-diphenylporphyrin) with organolithium reagents fail due to competitive addition at the porphyrin ring ...
Arnold, Dennis   +2 more
core   +2 more sources

H2S Is a Potential Universal Reducing Agent for Prx6‐Type Peroxiredoxins

open access: yesAdvanced Science, EarlyView.
We report the identification of H2S as reducing agent for Prx6‐type peroxiredoxins. In contrast to common physiological reducing agents of other peroxiredoxins, HS− is small enough to access the active site of oxidized Prx6‐type enzymes in the fully‐folded protein conformation.
Lukas Lang   +3 more
wiley   +1 more source

Synthesis of the fluorescent amino acid rac-(7-hydroxycoumarin-4-yl)ethylglycine

open access: yesBeilstein Journal of Organic Chemistry, 2010
The hydrochloride of the racemic amino acid (7-hydroxycoumarin-4-yl)ethylglycine, a versatile fluorescent probe in proteins, has been synthesized in five steps from commercially available (7-hydroxycoumarin-4-yl)acetic acid.
Manfred Braun, Torsten Dittrich
doaj   +1 more source

Synthesis of functionalized polyisobutylene and its block copolymers with D,L-lactide

open access: yesЖурнал Белорусского государственного университета: Химия, 2019
Method of reactive polyisobutylene modification by various alkoxybenzenes (anisole and 4-phenoxybutanol) was proposed to form functionalized polyisobutylenes.
Pavel A. Nikishau   +4 more
doaj   +1 more source

Molecular modelling and Function Prediction of hABH7, human homologue of _E. coli_ ALKB7 [PDF]

open access: yes, 2011
Human homologues of ALKB protein have shown the prime role in DNA damaging drugs, used for cancer therapy. Little is known about structure and function of hABH7, one of the members of this superfamily. Therefore, in the present study we intend to predict
Ambarish Sharan Vidyarthi   +2 more
core   +1 more source

Tamoxifen-like metallocifens target thioredoxin system determining mitochondrial impairment leading to apoptosis in Jurkat cells [PDF]

open access: yes, 2017
Tamoxifen-like metallocifens (TLMs) of the group-8 metals (Fe, Ru, and Os) show strong anti-proliferative activity on cancer cell lines resistant to apoptosis, owing to their unique redox properties. In contrast, the thioredoxin system, which is involved
Alberto Bindoli   +9 more
core   +2 more sources

Iron Single‐Atom Catalyzed N‐Alkylation of Amines with Alcohols via Solvent‐Free Borrowing Hydrogen Strategy

open access: yesAdvanced Science, EarlyView.
An innovative iron‐based single‐atom catalyst (FeSA@N‐G) with Fe1–N4 coordination is presented, synthesized through a simple and scalable method. It exhibits exceptional activity and selectivity in N‐alkylation via the borrowing hydrogen strategy under solvent‐free conditions, producing water as the only by‐product. Achieving record TOF (413.1 h-1) and
Arun D. Kute   +11 more
wiley   +1 more source

Clathrin Light Chain B Drives Hepatocellular Carcinoma Progression Through Dual Mechanisms: Small Extracellular Vesicle‐Mediated Angiogenesis and the NF‐κB–PCLAF Signaling Axis

open access: yesAdvanced Science, EarlyView.
Clathrin Light Chain B (CLTB) drives hepatocellular carcinoma progression through dual pathways: intracellularly, it activates the NF‐κB–PCLAF axis to enhance small extracellular vesicle (sEV) uptake and tumor proliferation; extracellularly, CLTB‐enriched sEVs bind SH3KBP1 to inhibit its degradation, inducing angiogenesis and vascular leakage ...
Xiaoke Sun   +7 more
wiley   +1 more source

Synthesis of Optically Active Bifunctional Building Blocks through Enantioselective Copper-Catalyzed Allylic Alkylation Using Grignard Reagents [PDF]

open access: yes, 2007
Enantioselective copper-catalyzed allylic alkylations were performed on allylic bromides with a protected hydroxyl or amine functional group using several Grignard reagents and Taniaphos L1 as a ligand.
Feringa, Ben L.,   +3 more
core   +1 more source

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