HETEROCYCLIC BIARYL DERIVATIVE AND PDE INHIBITOR COMPRISING SAME AS ACTIVE INGREDIENT

摘要

Novel heterocyclic biaryl derivatives were disclosed which are useful as pharmaceutical agents and which exhibit a phosphodiesterase-inhibitory action. The heterocyclic biaryl derivatives are represented by the following general formula (1): wherein the Heterocycle 1 and the Heterocycle 2 are directly bonded together.