1 Y00 Dobutamine 1.000 2 Y13 (2e)-3-(3,4-dihydroxyphenyl)-N-[2-(4-hydroxyphenyl)ethyl]acrylamide 0.833 3 22G N-[(2s)-2-amino-3-phenylpropyl]-L-tyrosine 0.731 4 U1N 4-[(3r)-3-{[2-(4-fluorophenyl)-2-oxoethyl]amino}butyl]benzamide 0.704