abstract |
"COMPOUNDS, PHARMACEUTICAL COMPOSITION AND METHOD TO INHIBIT PDE4 ENZYME, ENHANCE COGNITION AND / OR TREAT PSYCHOSIS IN A PATIENT". PDE4 inhibition is achieved by novel compounds, for example amino indazole and amino benzofuran analogs. The compounds of the present invention are of formulas I and II: wherein R 1, R 2, R 3, R 4, R 7, R 8 are as defined herein. |