132870-18-9Relevant academic research and scientific papers
Direct synthesis of novel 2-imino-1,3-selenazolidine derivatives from O-methanesulfonyl β-amino alcohol hydrochlorides
Ueda, Shigeo,Terauchi, Hideo,Suzuki, Kenji,Watanabe, Nobuhide
, p. 233 - 236 (2005)
A synthetic approach to novel 4,5-dialkylsubstituted 2-imino-1,3- selenazolidine derivatives from O-methanesulfonyl β-amino alcohol hydrochlorides using potassium selenocyanate was described. Recently, we have reported that 4,5-dialkylsubstituted 2-imino-1,3-azolidine derivatives (1) strongly inhibit inducible nitric oxide synthase (iNOS). To our knowledge, only few methods have been reported for the synthesis of 4,5-dialkylsubstituted 2-imino-1,3-selenazolidine derivatives (2), which are the selenium analogue of 1. Herein, we report the direct synthesis of 2 from the corresponding O-methanesulfonyl β-amino alcohol hydrochlorides using potassium selenocyanate and evaluation for the inhibitory activity against iNOS of the newly synthesized selenazolidine derivatives.
Parallel kinetic resolution of acyclic γ-amino-α,β- unsaturated esters: Application to the asymmetric synthesis of 4-aminopyrrolidin-2-ones
Davies, Stephen G.,Lee, James A.,Roberts, Paul M.,Thomson, James E.,Yin, Jingda
supporting information; experimental part, p. 218 - 221 (2012/03/08)
Conjugate addition of a 50:50 pseudoenantiomeric mixture of lithium (R)-N-benzyl-N-(α-methylbenzyl)amide and lithium (S)-N-3,4- dimethoxybenzyl-N-(α-methylbenzyl)amide to a range of racemic acyclic γ-amino-α,β-unsaturated esters (derived from the corresponding α-amino acids) effects their efficient parallel kinetic resolution, allowing the preparation of enantiopure β,γ-diamino esters. The β,γ-diamino ester products of these reactions are readily converted into the corresponding substituted 4-aminopyrrolidin-2-ones via N-debenzylation and cyclization.
4,5-Dialkylsubstituted 2-imino-1,3-thiazolidine derivatives as potent inducible nitric oxide synthase inhibitors
Ueda, Shigeo,Terauchi, Hideo,Yano, Akihiro,Matsumoto, Masashi,Kubo, Taeko,Kyoya, Yoko,Suzuki, Kenji,Ido, Motoharu,Kawasaki, Motoji
, p. 4101 - 4116 (2007/10/03)
In the course of our search for selective iNOS inhibitors, we have previously reported that 2-imino-1,3-oxazolidine derivatives (1) and 2-aminothiazole derivatives (2) are selective iNOS inhibitors. In order to find more potent iNOS inhibitors, we focused
Enantiomerically pure [1,2-diamino-1-(4-fluorophenyl)butane]platinum(II) complexes: Synthesis and antitumor activity against MCF-7 and MDA-MB 231 breast cancer and LnCaP/FGC prostate cancer cell lines
Dullin, Anja,Dufrasne, Francois,Gelbcke, Michael,Gust, Ronald
, p. 654 - 667 (2007/10/03)
Enantiomerically pure 1,2-diamino-1-(4-fluorophenyl)butanes were synthesized by stereoselective procedures. The enantiomeric purity was determined by 1H NMR spectroscopy after derivatization with (1R)-myrtenal. For the coordination to platinum,
A novel synthesis of α-aminoaldehydes from glyoxal monoacetal
Katritzky,Borowiecka,Fan
, p. 1173 - 1176 (2007/10/02)
Primary and secondary amines condense with benzotriazole and glyoxal monoacetal to give N-substituted 1-(benzotriazolyl)-2,2-diethoxyethylamines 4, which with Grignard reagents readily yield the corresponding 2-aminoalkanal diethylacetal 5. These are easily hydrolyzed to produce α-aminoaldehydes 6.
