1 22G N-[(2s)-2-amino-3-phenylpropyl]-L-tyrosine 1.000 2 PUK N-[(2s)-2-amino-3-phenylpropyl]-L-phenylalanine 0.957 3 Y00 Dobutamine 0.731 4 Y13 (2e)-3-(3,4-dihydroxyphenyl)-N-[2-(4-hydroxyphenyl)ethyl]acrylamide 0.731