摘要 |
<p>This invention relates to the protection of certain 3-substituted-2-oxindole-1-carboxamides of formula (I) and the pharmaceutically-acceptable base salts thereof wherein X is H, Cl or F; Y is H or Cl; and R is benzyl or thienyl, each optionally substituted with Cl or F from decomposition in the presence of light.</p> |