| 摘要 |
Aminoacid derivatives of formula XNH-C(=NH)-NH-(CH2)n-S-(CH2)m-CR1R1'-CH(NHR')-COOR (I), in racemic or optically active forms, their amine, alkali metal, and alkaline earth metal salts, and, when R is H, their salts with mineral and organic acids, are new. R = H or 1-6C alkyl; R' = H or COR2; R2 = 1-6C alkyl, aryl or OR3; R3 = 1-6C alkyl or aralkyl; R1, R1' = H or 1-3C alkyl; n = 2-4; m = 0 or 1; and X = H or NO2.
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