1 2JH 3-cyclobutyl-L-alanine 1.000 2 Q78 L-3-thienylalanine 0.750 3 TIH Beta(2-thienyl)alanine 0.750 4 XYC (2~{S})-2-azanyl-3-cyclopentyl-propanoic acid 0.750 5 LIS (2s,4s)-2-amino-4,5-epoxipentanoic acid 0.727