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Amino acid derivatives

  • US 5,670,515 A
  • Filed: 05/25/1995
  • Issued: 09/23/1997
  • Est. Priority Date: 03/26/1991
  • Status: Expired due to Fees
First Claim
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1. A compound of the formula ##STR19## wherein L is a group of the formula ##STR20## R is amidino or guanidino, one of X and Y is CH, and the other is N, R0 is hydrogen or amidino,t is an integer between 2 and 6,R'"'"', R" and R'"'"'", in the α

  • -aminocarboxylic acid residue of the formula --N(R'"'"')C(R",R'"'"'")CO-- are hydrogen or N-substituents R'"'"' or sidechains R" and R'"'"'" of open chain or cyclic, natural or synthetic α

    -aminocarboxylic acids, wherein a hydroxy or carboxy group present in the N-substituent R'"'"' and sidechains R" and R'"'"'" can be etherified or, respectively, esterified or amidated, and amino groups can be C1-6 alkanoylated or aroylated, and wherein R'"'"' and R" together with the N atom and C atom to which they are attached can form a 4- to 6-membered ring;

    Q is a group of the formula ##STR21## T is hydrogen or a lower-alkyl or phenyl-lower-alkyl group which is cleavable under physiological conditions,as well as hydrates or solvates and physiologically usable salts thereof.

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