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(R)-3-[((s)-2-amino-3-methyl-butyryl)-methyl-amino]-piperidine-1-carboxylic acid tert-butyl ester

(S)-3-[((s)-2-amino-3-methyl-butyryl)-methyl-amino]-piperidine-1-carboxylic acid tert-butyl ester

4-[((S)-2-amino-3-methyl-butyryl)-methyl-amino]-piperidine-1-carboxylic acid tert-butyl ester

2-(1-Benzyl-piperidin-3-yloxy)-ethylamine

2-(1-Benzyl-piperidin-4-yloxy)-ethylamine

2-(1-Benzyl-piperidin-2-ylmethoxy)-ethylamine

2-(1-Benzyl-piperidin-3-ylmethoxy)-ethylamine

2-(1-Benzyl-piperidin-4-ylmethoxy)-ethylamine

4-(2-Amino-ethylsulfanylmethyl)-piperidine-1-carboxylic acid tert-butyl ester

3-{[((S)-2-amino-propionyl)-methyl-amino]-methyl}-piperidine-1-carboxylic acid benzyl ester