| 摘要 |
The invention refers to compounds of general formula (I)wherein the R groups are, independently, H, Calkyl, aryl, CF; Y is CH, C=O; X is bond, C=O, SO, or C=N-CN; m is 0, 1; n is 0, 1; A is a heterocycle, or a phenyl group optionally substituted as defined in the specification. The compounds are active on chronic pain conditions of different origin; they can be administered alone or with other drugs. Most of these compounds are new. The invention include a process to prepare said compounds, and pharmaceutical compositions suitable for their administration to a patient. |
