4-((7S)-7-{(tert-butoxycarbonyl)[(2R)-2-hydroxy-2-(3-pyridinyl)ethyl]amino}-5,6,7,8-tetrahydro-2-naphthalenyl)benzoic acid

4-((S)-7-((tert-butoxycarbonyl)((R)-2-(6-chloropyridin-3-yl)-2-hydroxyethyl)amino)-5,6,7,8-tetrahydronaphthalen-2-yl)benzoic acid