Enzymatic Deprotection of Methylthiomethyl Esters: Synthesis of O-(Carbamoyl) and O-(Sulfamoyl)salicylic Acids
摘要:
An enzymatic selective deprotection of methylthiomethyl esters via their sulfone derivatives in presence of labile carbamoyloxy as well as sulfamoyloxy functionalities lead to the formation of O-(carbamoyl) and O-(sulfamoyl)salicylic acids respectively.
Enzymatic Deprotection of Methylthiomethyl Esters: Synthesis of O-(Carbamoyl) and O-(Sulfamoyl)salicylic Acids
摘要:
An enzymatic selective deprotection of methylthiomethyl esters via their sulfone derivatives in presence of labile carbamoyloxy as well as sulfamoyloxy functionalities lead to the formation of O-(carbamoyl) and O-(sulfamoyl)salicylic acids respectively.
Evaluation of glycolamide esters and various other esters of aspirin as true aspirin prodrugs
作者:Niels Moerk Nielsen、Hans Bundgaard
DOI:10.1021/jm00123a040
日期:1989.3
aryl esters of acetylsalicylic acid (aspirin) were synthesized and evaluated as potential prodrug forms of aspirin. N,N-Disubstituted glycolamide esters were found to be rapidly hydrolyzed in human plasma, resulting in the formation of aspirin as well as the corresponding salicylate esters. These in turn hydrolyzed rapidly to salicylic acid. The largest amount of aspirin formed from the esters were
Improved delivery through biological membranes VIII: Design, synthesis, and in vivo testing of true prodrugs of aspirin
作者:Thorsteinn Loftsson、James J. Kaminski、Nicholas Bodor
DOI:10.1002/jps.2600700708
日期:1981.7
ester-type prodrugs of aspirin were designed and synthesized. The methylthiomethyl, methylsulfinymethyl, and methylsulfonylmethyl esters of aspirin (acetylsalicylic acid) were cleaved in vitro in plasma to form aspirin rather than the corresponding salicylates. In vitro studies using dogs indicated that at least one aspirin derivative, methylsulfinylmethyl-2-acetoxybenzoate, is a trueaspirinprodrug since