(3,S,beta,S)-1,2,3,4-tetrahydro-beta-((1-(1-oxo-3-(1,5,6,7-tetrahydro-1,8-naphthyridin-2-yl)propyl)-4-piperidinyl)methyl)-3-quinolinepropanoic acid
(3,s,beta,s)-1,2,3,4-tetrahydro-beta-((1-(1-oxo-3-(1,5,6,7-tetrahydro-1,8-naphthyridin-2-yl)propyl)-4-piperidinyl)methyl)-3-quinolinepropanoic acid