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N,N'-DI(ARALKYL)-N,N'-DI(CARBOXYALKYL)ALKYLENEDI- OR TRIAMINE AND N-ARALKYL-N'-CARBOXYALKYL-N,N'-DI(CARBOXYALKYL)ALKYLENEDI- OR TRIAMINE, AND THEIR USE IN MEDICINE AND COSMETIC
N,N'-DI(ARALKYL)-N,N'-DI(CARBOXYALKYL)ALKYLENEDI- OR TRIAMINE AND N-ARALKYL-N'-CARBOXYALKYL-N,N'-DI(CARBOXYALKYL)ALKYLENEDI- OR TRIAMINE, AND THEIR USE IN MEDICINE AND COSMETIC
N,N'-di(aralkyl)- or N-(aralkyl)-N'-(carboxyalkyl)- N,N'- di-(carboxyalkyl) alkylene di- and triamine derivs. of formula (I) and their salts and metal complexes are new. In (I), n = 0-2; m, p = 1-3; R and R1-R4 = H or 1-4C alkyl; or R1+R2, R2+R3 = a 5- or 6-membered ring; X = COOR4 or gp. of formula (i) or (ii; p = 1 ); Z1-Z3 = H, 1-4C alkyl, OR5 or NR5R'5; R5, R'5 = H or 1-4C alkyl; with proviso that when n = 0, m = 1 and X = -COOR4 or gp. (ii) then at least one of R, R1 and R2 is other than H.
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