4-(((S)-1-((2S,4R)-4-羟基-2-((4-(4-甲基噻唑-5-基)苄基)氨基甲酰基)吡咯烷-1-基)-3,3-二甲基-1-氧代丁烷-2-基)氨基)-4-氧代丁酸
4-(((S)-1-((2S,4R)-4-Hydroxy-2-((4-(4-methylthiazol-5-yl)benzyl)carbamoyl)pyrrolidin-1-yl)-3,3-dimethyl-1-oxobutan-2-yl)amino)-4-oxobutanoic acid
4-(((S)-1-((2S,4R)-4-羟基-2-((4-(4-甲基噻唑-5-基)苄基)氨基甲酰基)吡咯烷-1-基)-3,3-二甲基-1-氧代丁烷-2-基)氨基)-4-氧代丁酸 98%