Abstract: Novel cystine compounds of the general formula I are proposed wherein the independently of one another each represent a, preferably natural, L-amino acid, in particular glycine, alanine, proline, threonine, serine, valine, arginine, lysine or ornithine; the R.sub.1 independently of one another each stand for an acyl group of an organic acid with 2 to 5 carbon atoms, preferably for acetyl-, propionyl-, succinyl- or hydroxysuccinyl- or for a, preferably natural, L-amino acid which via its carboxylic group is linked amide-like to the amino group of the amino acid AS, the amino acids indicated as preferred for AS also being preferred for the amino acids of R.sub.1, or the two R.sub.1 together form the acyl group of an organic dicarboxylic acid, preferably the succinic or malic group; and the R.sub.2 independently of one another each are an alkoxy group with 1 to 4 carbon atoms, preferably methoxy or ethoxy, the hydroxy group, where in case of the meaning of R.sub.
Type:
Grant
Filed:
November 2, 1987
Date of Patent:
January 31, 1989
Assignees:
Bleiberger Bergwerks Union, Pfrimmer & Co. Pharmazeutische Werke Erlangen GmbH & Co. KG
Inventors:
Naderer Rainer, Buxbaum Lothar, Langer Klaus