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(1968)(S)-2-(benzylamino)-3-hydroxypropanoic acid
N-Benzyl-N-carboxymethyl-L-serin
N-<4-<<2(S)-(benzylamino)-3-<(2-amino-5-nitro-4(3H)-oxopyrimidin-6-yl)amino>propyl>amino>benzoyl>-L-glutamic acid
N-<4-<<2(R)-(benzylamino)-3-<(2-amino-5-nitro-4(3H)-oxopyrimidin-6-yl)amino>propyl>amino>benzoyl>-L-glutamic acid
[(S)-2-(2-Amino-5-nitro-6-oxo-1,6-dihydro-pyrimidin-4-ylamino)-1-formyl-ethyl]-benzyl-carbamic acid tert-butyl ester