Invention Application
US20020055516A1 Nitrogen-containing heterocyclic compounds and medicaments containing the compounds 有权
含氮杂环化合物和含有该化合物的药物

Nitrogen-containing heterocyclic compounds and medicaments containing the compounds
Abstract:
The present invention provides a novel nitrogen-containing heterocyclic compound useful as a phosphodiesterase-4 inhibitor, and a medicament comprising the same. Further, the present invention provides a nitrogen-containing heterocyclic compound represented by the following formula, its salt or hydrates thereof, and a medicament comprising the same. 1
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