| 摘要 |
<p>Benzofuran derivatives represented by general formula (I) and pharmacologically acceptable salts thereof wherein R1 is hydrogen or substituted or unsubstituted lower alkyl; R?2, R3 and R4¿ are each independently hydrogen or the like; R5a is hydrogen, substituted or unsubstituted lower alkyl, cycloalkyl, polycycloalkyl, substituted or unsubstituted aryl or the like, and R5b is substituted or unsubstituted lower alkyl, cycloalkyl, polycycloalkyl or the like, or alternatively R?5a and R5b¿ may be united to form a substituted or unsubstituted nitrogenous heterocyclic group; and R?6a and R6b¿ are each independently hydrogen, substituted or unsubstituted lower alkyl, substituted or unsubstituted heteroarylalkyl or substituted or unsubstituted aralkyl, or alternatively R?6a and R6b¿ may be united to form a substituted or unsubstituted nitrogenous heterocyclic group.</p> |
