The present invention provides novel benzofuran derivatives represented by the following formula (I) or salts thereof:
1
wherein Py is a 2-, 3-, or 4-pyridyl group and R is a substituted or unsubstituted phenyl group or a substituted or unsubstituted aromatic heterocyclic group.
The present invention also relates to inhibitors of steroid 17&agr;-hydroxylase and/or steroid C17-20 lyase and pharmaceutical compositions containing a benzofuran derivative of the above formula (I), or the salt.
The present invention provides novel benzofuran derivatives represented by the following formula (I) or salts thereof:
wherein Py is a 2-, 3-, or 4-pyridyl group and R is a substituted or unsubstituted phenyl group or a substituted or unsubstituted aromatic heterocyclic group.
The present invention also relates to inhibitors of steroid 17α-hydroxylase and/or steroid C17-20 lyase and pharmaceutical compositions containing a benzofuran derivative of the above formula (I), or the salt.