Patent ID: 8754085

Claim:
A compound, or a pharmaceutically acceptable salt thereof, selected from the group consisting of: 7-(2,3-diphenyl-7,8-dihydropyrido[3,2-b]pyrazin-5(6H)-yl)heptanoic acid; 7-(2,3-bis(4-fluorophenyl)-7,8-dihydropyrido[2,3-b]pyrazin-5(6H)-yl)heptanoic acid; 7-(2,3-di-p-tolyl-7,8-dihydropyrido[2,3-b]pyrazin-5(6H)-yl)heptanoic acid; 7-(2,3-bis(4-methoxyphenyl)-7,8-dihydropyrido[2,3-b]pyrazin-5(6H)-yl)heptanoic acid; 6-(2,3-diphenyl-7,8-dihydropyrido[3,2-b]pyrazin-5(6H)-yl)hexanoic acid; and 5-(2,3-diphenyl-7,8-dihydropyrido[3,2-b]pyrazin-5(6H)-yl)pentanoic acid.