The present invention provides processes for the preparation of substituted 2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-diones which are useful, for example, for preventing or treating diseases or conditions related to an abnormally high level or activity of TNF-α. The invention can provide cost-effective and efficient processes for the commercial production of substituted 2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-diones, including, but not limited to, 4-[(N,N-dimethylhydrazono)methyl]-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-dione, 4-aminomethyl-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-dione, and 4-[(acylamino)methyl]-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-diones.
本发明提供了制备取代的2-(2,6-二氧代
哌啶-3-基)异
吲哚-1,3-二酮的方法,该方法可用于预防或治疗与TNF-α
水平或活性异常高相关的疾病或病况。该发明可以提供成本效益高且高效的方法,用于商业生产取代的2-(2,6-二氧代
哌啶-3-基)异
吲哚-1,3-二酮,包括但不限于4-[(N,N-二甲基
肼)甲基]-2-(2,6-二氧代
哌啶-3-基)异
吲哚-1,3-二酮、4-
氨甲基-2-(2,6-二氧代
哌啶-3-基)异
吲哚-1,3-二酮和4-[(酰胺基)甲基]-2-(2,6-二氧代
哌啶-3-基)异
吲哚-1,3-二酮。