N-Boc-3-iodo-L-alanine Methyl Ester;Boc-β-iodo-L-alanine methyl ester; Methyl (2R)-2-[(tert-butoxycarbonyl)amino]-3-iodopropanoate; Methyl (R)-2-(tert-butoxycarbonylamino)-3-iodopropanoate;,(R)-Methyl 2-(tert-butoxycarbonylamino)-3-iodopropanoate,Eluxadoline