1-[2-hydroxy-4-(2-hydroxy-5-methylcyclopentylcarbamoyl)-5-phenylpentyl]-4-(3-pyridin-3-ylpropionyl)piperazine-2-(N-tert-butyl)carboxamide
1-[2-hydroxy-4-(2-hydroxy-5-methylcyclopentylcarbamoyl)-5-phenylpentyl]-4-(3-pyridin-3-ylpropionyl)piperazine-2-(n-tert-butyl)carboxamide