26660-48-0Relevant articles and documents
Initial Route Scouting and Final Process Development for the Multi-Kg Production of 3-Fluoro-6-methoxyquinoline from p-Anisidine and 2-Fluoromalonic Acid
Sch?fer, Gabriel,Fleischer, Tony,Blumer, Nicole,Udry, Megan,Reber, Stefan,Stansfield, Ian,Liu, Yuanhua,Li, Yan,Li, Pixu
, p. 347 - 357 (2022/02/01)
A scalable route to 3-fluoro-6-methoxyquinoline needed to be developed as multi-kg amounts of this heterocycle were required. Initial route development focused on the formation of the key C-F bond via a Balz-Schiemann reaction or electrophilic fluorinatio
Synthesis of 2,4-unsubstituted quinoline-3-carboxylic acid ethyl esters from arylmethyl azides via a domino process
Tummatorn, Jumreang,Thongsornkleeb, Charnsak,Ruchirawat, Somsak,Gettongsong, Tanita
supporting information, p. 1463 - 1467 (2013/05/08)
A convenient synthesis of 2,4-unsubstituted quinoline-3-carboxylic acid ethyl esters via a domino process is described. The synthesis employs arylmethyl azides as the precursor which undergoes an acid-promoted rearrangement to give an N-aryl iminium ion. Following the addition with ethyl 3-ethoxyacrylate, intramolecular electrophilic aromatic substitution, elimination and subsequent oxidation, the quinoline products were obtained in moderate to excellent yields.
Amino acids containing dihydropyridine ring systems for site-specific delivery of peptides to the brain
-
, (2008/06/13)
The invention provides novel amino acids and peptides containing them which comprise a dihydropyridine pyridinium salt-type redox system and which provide site-specific and sustained delivery of pharmacologically active peptides to the brain. These new amino acids contain a redox system appended directly or via an alkylene bridge to the carbon atom adjacent to the carboxyl carbon and may be incorporated into a peptide chain at a variety of positions, including non-terminal positions.