(+)-2-氨基-N-[(1S,2S)-(2-羟基-1-甲基-2-苯基)乙基]-N-甲基乙酰胺

2-{N-t-butoxycarbonylamino}-N-{[2,3-13C2]-1,2-diphenylprop-2-yl}acetamide

2-{N-t-butoxycarbonylamino}-N-{2-[U-13C]phenyl-1-phenylprop-2-yl}acetamide