C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
167/119, 167/258
C07F 5/00 (2006.01) A61K 49/18 (2006.01) A61K 51/04 (2006.01)
Patent
CA 1253514
ABSTRACT Compounds of the general formula I: Image (I), wherein R1 signifies a COOX group or the group Image R2 and R3 are the same or different and signify a hydrogen atom, a lower straight- or branched-chain, hydrocarbon radical, a phenyl or benzyl group or either R2 or R3 signifies the group Image or R2 or R3 together signify a trimethylene or tetramethylene radical, R4 represents a straight- or branched-chain mono- or poly-hydroxyalkyl radicaI, R5 represents a hydrocarbon atom, a lower straight- or branched-chain, optionally mono- or poly-hydroxylated, hydrocarbon radical, Q signifies an oxygen or sulfur atom or the group Image , wherein j signifies the numbers 1 to 4 and Rx signifies a hydrogen atom, a lower alkoxy group with 1 to 4 carbon atoms, a COOX group, or if j > 1, also the group Image wherein k and m are the same or different and represent the numbers 0 or 2, 1 signifies the numbers 1 or 2 and n and w are the same or different and signify the numbers 0 or 1, wherein n and w only then represent the number 1, if k and m signify the number 2, and X represents hydrogen atoms and/or metal ion equivalents, and their salts with physiologically harmless organic bases, are valuable complexing agents, complexes and complex salts.
457842
Gries Heinz
Renneke Franz-Josef
Weinmann Hanns-Joachim
Marks & Clerk
Schering Aktiengesellschaft
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