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|Title:||Tetrasubstituted 2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolines and method of reducing TNF.alpha. levels|
|Abstract:||Tetrasubstituted 1-oxo-2-(2,6-dioxopiperidin-3-yl)isoindolines reduce the levels of TNF.alpha. in a mammal. A typical embodiment is 1-oxo-2-(2,6-dioxopiperidin-3-yl)-4,5,6,7-tetrafluoroisoindoline.|
|Inventor(s):||Muller; George W. (Bridgewater, NJ), Stirling; David I. (Branchburg, NJ), Chen; Roger Shen-Chu (Edison, NJ)|
|Assignee:||Celgene Corporation (Warren, NJ)|
|Filing Date:||Aug 22, 1996|
|Claims:||1. A compound of the formula: ##STR6## in which each of R.sup.1, R.sup.2, R.sup.3, and R.sup.4, independently of the others, is halo, alkyl of 1 to 4 carbon atoms, or alkoxy of 1 to 4 carbon atoms. |
2. The compound according to claim 1 in which R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are the same and each is chloro, fluoro, methyl, or methoxy.
3. The compound according to claim 2 which is 1-oxo-2-(2,6-dioxopiperidin-3-yl)-4,5,6,7-tetrafluoroisoindoline.
4. The compound according to claim 2 which is 1-oxo-2-(2,6-dioxopiperidin-3-yl)-4,5,6,7-tetrachloroisoindoline.
5. The compound according to claim 2 which is 1-oxo-2-(2,6-dioxopiperidin-3-yl)-4,5,6,7-tetramethylisoindoline.
6. The compound according to claim 2 which is 1-oxo-2-(2,6-dioxopiperidin-3-yl)-4,5,6,7-tetramethoxyisoindoline.
7. The method of reducing undesirable levels of TNF.alpha. in a mammal which comprises administering thereto an effective amount of a compound according to claim 1.
8. A pharmaceutical composition comprising a quantity of a compound according to claim 1 sufficient upon administration in a single or multiple dose regimen to reduce levels of TNF.alpha. in a mammal in combination with a carrier.
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