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2-[(2S)-4-[(tert-butoxy)carbonyl]-2-[(1H-indol-3-yl)methyl]piperazin-1-yl]acetic acid
3-(3-methylpiperazin-1-yl)propanoic acid
3-[(3S)-3-methylpiperazin-1-yl]propanoic acid
3-[(3R)-3-methylpiperazin-1-yl]propanoic acid
3-{4-[(tert-butoxy)carbonyl]-3-methylpiperazin-1-yl}propanoic acid
3-[(3S)-4-[(tert-butoxy)carbonyl]-3-methylpiperazin-1-yl]propanoic acid
3-[(3R)-4-[(tert-butoxy)carbonyl]-3-methylpiperazin-1-yl]propanoic acid
3-(2-methylpiperazin-1-yl)propanoic acid
3-[(2R)-2-methylpiperazin-1-yl]propanoic acid
3-[(2S)-2-methylpiperazin-1-yl]propanoic acid
3-{4-[(tert-butoxy)carbonyl]-2-methylpiperazin-1-yl}propanoic acid
3-[(2R)-4-[(tert-butoxy)carbonyl]-2-methylpiperazin-1-yl]propanoic acid
3-[(2S)-4-[(tert-butoxy)carbonyl]-2-methylpiperazin-1-yl]propanoic acid
3-[3-(propan-2-yl)piperazin-1-yl]propanoic acid
3-[(3S)-3-(propan-2-yl)piperazin-1-yl]propanoic acid
3-[(3R)-3-(propan-2-yl)piperazin-1-yl]propanoic acid
3-{4-[(tert-butoxy)carbonyl]-3-(propan-2-yl)piperazin-1-yl}propanoic acid
3-[(3S)-4-[(tert-butoxy)carbonyl]-3-(propan-2-yl)piperazin-1-yl]propanoic acid
3-[(3R)-4-[(tert-butoxy)carbonyl]-3-(propan-2-yl)piperazin-1-yl]propanoic acid
3-[2-(propan-2-yl)piperazin-1-yl]propanoic acid
3-[(2R)-2-(propan-2-yl)piperazin-1-yl]propanoic acid
3-[(2S)-2-(propan-2-yl)piperazin-1-yl]propanoic acid
3-{4-[(tert-butoxy)carbonyl]-2-(propan-2-yl)piperazin-1-yl}propanoic acid
3-[(2R)-4-[(tert-butoxy)carbonyl]-2-(propan-2-yl)piperazin-1-yl]propanoic acid
3-[(2S)-4-[(tert-butoxy)carbonyl]-2-(propan-2-yl)piperazin-1-yl]propanoic acid
3-[3-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-[(3S)-3-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-{4-[(tert-butoxy)carbonyl]-3-(2-methylpropyl)piperazin-1-yl}propanoic acid
3-[(3S)-4-[(tert-butoxy)carbonyl]-3-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-[(3R)-4-[(tert-butoxy)carbonyl]-3-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-[2-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-[(2R)-2-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-[(2S)-2-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-{4-[(tert-butoxy)carbonyl]-2-(2-methylpropyl)piperazin-1-yl}propanoic acid
3-[(2R)-4-[(tert-butoxy)carbonyl]-2-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-[(2S)-4-[(tert-butoxy)carbonyl]-2-(2-methylpropyl)piperazin-1-yl]propanoic acid
3-(3-phenylpiperazin-1-yl)propanoic acid
3-[(3S)-3-phenylpiperazin-1-yl]propanoic acid
3-[(3R)-3-phenylpiperazin-1-yl]propanoic acid
3-{4-[(tert-butoxy)carbonyl]-3-phenylpiperazin-1-yl}propanoic acid
3-[(3S)-4-[(tert-butoxy)carbonyl]-3-phenylpiperazin-1-yl]propanoic acid
3-(2-phenylpiperazin-1-yl)propanoic acid
3-[(2R)-2-phenylpiperazin-1-yl]propanoic acid
3-[(2S)-2-phenylpiperazin-1-yl]propanoic acid
3-{4-[(tert-butoxy)carbonyl]-2-phenylpiperazin-1-yl}propanoic acid
3-[(2R)-4-[(tert-butoxy)carbonyl]-2-phenylpiperazin-1-yl]propanoic acid
3-[(2S)-4-[(tert-butoxy)carbonyl]-2-phenylpiperazin-1-yl]propanoic acid
3-(3-benzylpiperazin-1-yl)propanoic acid
3-[(3S)-3-benzylpiperazin-1-yl]propanoic acid
3-[(3R)-3-benzylpiperazin-1-yl]propanoic acid