Mixedcarboxylic α-bromotoluoyl anhydrides were activated by silver tetrafluoroborate through intramolecular cyclization and reacted with alcohols or thiols giving the corresponding esters or thiol esters in good yileds with the elimination of phthalide.
Ligands of insulin degrading enzyme and their uses
申请人:Université de Lille 2 Droit et Santé
公开号:EP2371421A1
公开(公告)日:2011-10-05
The invention relates to ligands of insulin degrading enzyme and to their uses.
The ligands of the invention are non peptidic and bind specifically to the exosite of insulin degrading enzyme.
They are useful, in particular a use in the pharmaceutical field.
Synthesis of Thiol Esters by the Reaction of Ricinoleic Acid with Thiols Under Solvent-Free Conditions
作者:Renata G. Lara、Dielson C. Rodrigues、Samuel R. Mendes、Rodrigo B. Panatieri、Raquel G. Jacob、Diego Alves、Eder J. Lenardão、Gelson Perin
DOI:10.1080/00397911.2010.516053
日期:2011.10.15
Abstract The synthesis of several ricinoleic acid thiol esters starting from cis-(R)-12-hydroxyoctadec-9-enoic acid and thiols in the presence of N,N′-dicyclohexylcarbodiimide (DCC) is described. The method is efficient for aromatic and aliphatic thiols, selectively affording the respective fat acid thiol esters in good yields under mild, neutral, and solvent-free conditions. The protocol is general and was
The Asymmetric Addition of the Sn(II) Enolates of Thioesters to α-Iminoesters. A Convenient Synthesis of Optically Active cis-Substituted β-Lactams.
作者:Tohru Yamada、Hiroshi Suzuki、Teruaki Mukaiyama
DOI:10.1246/cl.1987.293
日期:1987.2.5
The asymmetricaddition of the Sn(II) enolates derived from thioesters to α-iminoesters having the chiral auxiliary on the nitrogen atom proceeds smoothly to afford syn-β-aminoacid derivatives, which are in turn converted to opticallyactive cis-substituted β-lactams.
THE DIASTEREOSELECTIVE ADDITION OF TIN(II) ENOLATES DERIVED FROM CARBOXYLIC THIOESTERS TO α-IMINOESTER
作者:Teruaki Mukaiyama、Hiroshi Suzuki、Tohru Yamada
DOI:10.1246/cl.1986.915
日期:1986.6.5
The diastereoselective addition of the Sn(II) enolatesderivedfrom carboxylic thioesters to α-iminoester is described. The Sn(II) enolates of t-butylthiol esters react smoothly with α-iminoester to afford the corresponding β-aminoacid derivatives in good yield with high diastereoselectivity.