| abstract |
Biphenyl derivative of the formula:n wherein R¹ is hydrogen atom or a lower alkoxycarbonyl group and R² is a lower alkoxycarbonyl group, or R¹ and R² are combined together to form a group of the formula:n each of R³ and R⁴ is a lower alkoxy group; and Ring A is a substituted or unsubstituted sulfur-containing or nitrogen-containing heterocyclic ring, and a pharmaceutically acceptable salt thereof are disclosed. Said biphenyl derivative (I) and its salt have excellent hypolipidemic activity and are useful for treatment or prophylaxis of hyperlipidemia and/or arteriosclerosis. |