Results 251 to 260 of about 24,641 (321)

Hemodynamic effects of OPC-28326, a new piperidine derivative, in dogs

open access: diamond, 1998
Kensuke Onto   +7 more
openalex   +1 more source

Mesoionic N‐Heterocyclic Olefins, Imines, Thiones, Phosphinidenes and Their Application in Catalysis

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 3, 16 January 2026.
This minireview covers recent advances in the synthesis, reactivity, and metal‐free catalytic uses of mesoionic N‐heterocyclic olefins (mNHOs), imines (mNHIs), thiones (mNHTs), and phosphinidenes (mNHPs). Abstract Transition metal compounds are widely known for their ability to activate small molecules and are excellent catalysts for a wide range of ...
Subir Maji   +3 more
wiley   +1 more source

Total Synthesis of the Cyanobacterial Alkaloid Nostodione A

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 2, January 16, 2026.
The total synthesis of the alkaloid nostodione A is successfully achieved utilizing 3,4‐dihydrocyclopenta[b]indole‐1,2‐dione as a key intermediate. The sensitive benzylidene moiety is introduced via a Knoevenagel condensation with p‐hydroxybenzaldehyde.
Oscar F. Casadiego‐Díaz   +3 more
wiley   +1 more source

Enantioconvergent Access to Chiral S(VI) Stereocenters by Kinetic Resolution of Sulfonimidoyl Chlorides

open access: yesAngewandte Chemie, Volume 138, Issue 2, 9 January 2026.
An enantioconvergent approach for the kinetic resolution of S(VI) stereocenters that leverages the electrophilic reactivity of the chiral sulfur atom is described. The catalytic process provides access to sulfonimidoyl chlorides and sulfonimidates, which are among the least studied S(VI) functionalities.
Arko Das   +10 more
wiley   +2 more sources

Lung Adenocarcinoma Expressing an EML4-ALK Fusion Transcript With Premature Stop Codons and Response to Alectinib: A Case Report. [PDF]

open access: yesThorac Cancer
Ozaki M   +11 more
europepmc   +1 more source

Oximino-piperidino-piperidine-based CCR5 antagonists. Part 2: synthesis, SAR and biological evaluation of symmetrical heteroaryl carboxamides

open access: green, 2003
Anandan Palani   +8 more
openalex   +1 more source

Electrochemical Intramolecular Aminobromination of Alkenes

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 2, January 16, 2026.
A versatile electrochemical method for the intramolecular aminobromination of alkenes has been developed. The method provides access to five‐, six‐, and seven‐membered heterocycles by exploiting tetrabutylammonium bromide as an electrolyte and bromine source.
Sara Colombo   +9 more
wiley   +1 more source

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