Chemistry of sulfenic acids. 7. Reason for the high reactivity of sulfenic acids. Stabilization by intramolecular hydrogen bonding and electronegativity effects
Lipase-catalyzed kinetic resolution of a series of esters having a sulfoxide group as the stereogenic centre
摘要:
A series of methyl 2-(alkylsulfinyl)benzoates (alkyl = C1, n-C4, n-C-8, n-C-12 and n-C-16) was investigated with respect to substrate behaviour and enantioselectivity in a lipase (Candida rugosa)-catalyzed hydrolytic reaction. Although three bonds separate the stereogenic centre and the ester carbonyl group, very high enantioselectivity values (>100) could be obtained. It was found that the enzyme consistently showed a strong kinetic preference for the (-)-(S)-enantiomer.
Design, synthesis and biological activity of selective hCAs inhibitors based on 2-(benzylsulfinyl)benzoic acid scaffold
作者:Giulia Rotondi、Paolo Guglielmi、Simone Carradori、Daniela Secci、Celeste De Monte、Barbara De Filippis、Cristina Maccallini、Rosa Amoroso、Roberto Cirilli、Atilla Akdemir、Andrea Angeli、Claudiu T. Supuran
DOI:10.1080/14756366.2019.1651315
日期:2019.1.1
Abstract A large library of derivatives based on the scaffold of 2-(benzylsulfinyl)benzoic acid were synthesised and tested as atypical inhibitors against four different isoforms of human carbonic anhydrase (hCA I, II, IX and XII, EC 4.2.1.1). The exploration of the chemical space around the main functional groups led to the discovery of selective hCA IX inhibitors in the micromolar/nanomolar range