Synthesis and elastase-inhibiting activity of 2-pyridinyl-isothiazol-3(2H)-one 1,1-dioxides
作者:Alexander Eilfeld、Camino M. González Tanarro、Maxim Frizler、Joachim Sieler、Bärbel Schulze、Michael Gütschow
DOI:10.1016/j.bmc.2008.07.049
日期:2008.9
The synthesis of a series of new isothiazol-3(2H)-one1,1-dioxides with halogenated (mostly fluorinated) pyridinyl and pentafluorophenyl substituents at 2-position is reported. These compounds (18-24) became easily accessible from 2-thiocyanato-1-carboxaldehydes and aminopyridines, pentafluoroaniline, respectively, by an isothiazolium cyclization-oxidation route. Compound 21 exhibited an IC(50) value