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(2007/10/03){6-[2-(5-ethyl-4-methyl-thiazol-2-yl)-ethyl]-4-methylsulfanyl-pyridin-2-yl}-carbamic acid tert-butyl ester
{6-[2-(1-methyl-2-oxo-butylcarbamoyl)-ethyl]-4-methylsulfanyl-pyridin-2-yl}-carbamic acid tert-butyl ester
3-(6-tert-butoxycarbonylamino-4-methylsulfanyl-pyridin-2-yl)-propionic acid
diethyl 4-bromo-2,6-pyridinedicarboxylate