New 2-substituted 2,3,3a,4-tetrahydro-1H-imidazo[5,1-c] [1,4]benzoxazin-1-ones as alpha 2-adrenoceptor antagonists. |
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| Authors: | P Melloni C Banzatti F Heidempergher G Marazzi S Ricciardi F Vaghi M Varasi |
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| Affiliation: | Farmitalia Carlo Erba Research & Development, Erbamont Group, Milano, Italy. |
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| Abstract: | The synthesis of new 2-imidazol(in)yl-alkyl derivatives of 2,3,3a,4-tetrahydro-1H-imidazo[5,1-c][1,4]benzoxazin-1-one is reported. Some compounds of the series have shown high affinity for alpha 2 receptors, high alpha 2/alpha 1 selectivity and alpha 2 antagonism in vitro (vas deferens). Owing to their selective alpha 2-antagonism associated to a novel structure, compounds 8 and 20 have been selected for further biological investigation as potential antidepressants. |
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