A Simple and Efficient Synthesis of Methyl 3,4-Dihydro-2-methyl-2<i>H</i>-1,2-benzothiazine-3-carboxylate 1,1-Dioxide from Saccharin Sodium Salt
作者:Aurélien Vidal、Jean-Claude Madelmont、Emmanuelle Mounetou
DOI:10.1055/s-2006-926289
日期:——
A straightforward synthesis of methyl 3,4-dihydro-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide from saccharin sodium salt was achieved in five steps. Methyl 3,4-dihydro-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide found application as a precursor for the synthesis of a new class of quaternary ammonium derivatives that are potential antiosteoarthritis agents.
以糖精钠为原料,通过五个步骤直接合成了 3,4-二氢-2-甲基-2H-1,2-苯并噻嗪-3-羧酸甲酯 1,1-二氧化物。3,4-二氢-2-甲基-2H-1,2-苯并噻嗪-3-羧酸甲酯 1,1-二氧化物可用作合成一类新型季铵衍生物的前体,这类衍生物具有抗关节炎的潜力。