提示: 按住Ctrl键可以同时选择多个官能团
2-[(3R)-4-[(tert-butoxy)carbonyl]-3-methyl-2-oxopiperazin-1-yl]acetic acid
2-[2-oxo-3-(propan-2-yl)piperazin-1-yl]acetic acid
2-[(3S)-2-oxo-3-(propan-2-yl)piperazin-1-yl]acetic acid
2-[(3R)-2-oxo-3-(propan-2-yl)piperazin-1-yl]acetic acid
2-{4-[(tert-butoxy)carbonyl]-2-oxo-3-(propan-2-yl)piperazin-1-yl}acetic acid
2-[(3S)-4-[(tert-butoxy)carbonyl]-2-oxo-3-(propan-2-yl)piperazin-1-yl]acetic acid
2-[(3R)-4-[(tert-butoxy)carbonyl]-2-oxo-3-(propan-2-yl)piperazin-1-yl]acetic acid
2-[3-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-[(3S)-3-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-[(3R)-3-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-{4-[(tert-butoxy)carbonyl]-3-(2-methylpropyl)-2-oxopiperazin-1-yl}acetic acid
2-[(3R)-4-[(tert-butoxy)carbonyl]-3-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-(2-oxo-3-phenylpiperazin-1-yl)acetic acid
2-[(3S)-2-oxo-3-phenylpiperazin-1-yl]acetic acid
2-[(3R)-2-oxo-3-phenylpiperazin-1-yl]acetic acid
2-{4-[(tert-butoxy)carbonyl]-2-oxo-3-phenylpiperazin-1-yl}acetic acid
2-[(3S)-4-[(tert-butoxy)carbonyl]-2-oxo-3-phenylpiperazin-1-yl]acetic acid
2-[(3R)-4-[(tert-butoxy)carbonyl]-2-oxo-3-phenylpiperazin-1-yl]acetic acid
2-(3-benzyl-2-oxopiperazin-1-yl)acetic acid
2-[(3S)-3-benzyl-2-oxopiperazin-1-yl]acetic acid
2-[(3R)-3-benzyl-2-oxopiperazin-1-yl]acetic acid
2-{3-benzyl-4-[(tert-butoxy)carbonyl]-2-oxopiperazin-1-yl}acetic acid
2-[(3R)-3-benzyl-4-[(tert-butoxy)carbonyl]-2-oxopiperazin-1-yl]acetic acid
2-{3-[(1H-indol-3-yl)methyl]-2-oxopiperazin-1-yl}acetic acid
2-[(3S)-3-[(1H-indol-3-yl)methyl]-2-oxopiperazin-1-yl]acetic acid
2-[(3R)-3-[(1H-indol-3-yl)methyl]-2-oxopiperazin-1-yl]acetic acid
2-{4-[(tert-butoxy)carbonyl]-3-[(1H-indol-3-yl)methyl]-2-oxopiperazin-1-yl}acetic acid
2-[(3S)-4-[(tert-butoxy)carbonyl]-3-[(1H-indol-3-yl)methyl]-2-oxopiperazin-1-yl]acetic acid
2-[(3R)-4-[(tert-butoxy)carbonyl]-3-[(1H-indol-3-yl)methyl]-2-oxopiperazin-1-yl]acetic acid
2-(5-methyl-2-oxopiperazin-1-yl)acetic acid
2-[(5S)-5-methyl-2-oxopiperazin-1-yl]acetic acid
2-[(5R)-5-methyl-2-oxopiperazin-1-yl]acetic acid
2-{4-[(tert-butoxy)carbonyl]-5-methyl-2-oxopiperazin-1-yl}acetic acid
2-[(5S)-4-[(tert-butoxy)carbonyl]-5-methyl-2-oxopiperazin-1-yl]acetic acid
2-[(5R)-4-[(tert-butoxy)carbonyl]-5-methyl-2-oxopiperazin-1-yl]acetic acid
2-[2-oxo-5-(propan-2-yl)piperazin-1-yl]acetic acid
2-[(5S)-2-oxo-5-(propan-2-yl)piperazin-1-yl]acetic acid
2-[(5R)-2-oxo-5-(propan-2-yl)piperazin-1-yl]acetic acid
2-{4-[(tert-butoxy)carbonyl]-2-oxo-5-(propan-2-yl)piperazin-1-yl}acetic acid
2-[(5S)-4-[(tert-butoxy)carbonyl]-2-oxo-5-(propan-2-yl)piperazin-1-yl]acetic acid
2-[(5R)-4-[(tert-butoxy)carbonyl]-2-oxo-5-(propan-2-yl)piperazin-1-yl]acetic acid
2-[5-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-[(5S)-5-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-[(5R)-5-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-{4-[(tert-butoxy)carbonyl]-5-(3-methylbutan-2-yl)-2-oxopiperazin-1-yl}acetic acid
2-[(5S)-4-[(tert-butoxy)carbonyl]-5-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-[(5R)-4-[(tert-butoxy)carbonyl]-5-(2-methylpropyl)-2-oxopiperazin-1-yl]acetic acid
2-(2-oxo-5-phenylpiperazin-1-yl)acetic acid
2-[(5S)-2-oxo-5-phenylpiperazin-1-yl]acetic acid
2-[(5R)-2-oxo-5-phenylpiperazin-1-yl]acetic acid