Acylpeptides
First Claim
1. An acylpeptide of the formula ##STR33## in which A'"'"' represents H--Ala--Gly--, Ac--Ala--Gly, H-- or Ac--,B represents Lys, Lys(Ac) or Lys(X) (wherein X is an ε
- -amino-protecting group),trp represents L-Trp, D-Trp or an analogous radical, which carries in the indole nucleus a halogen atom,cys represents L-Cys or D-Cys andAc represents an acyl radical of an optionally substituted alkanecarboxylic acid, present at the free amino group,and non-toxic salts and pharmacologically acceptable complexes thereof.
1 Assignment
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Accused Products
Abstract
Acylpeptides derived from somatostatin or from a derivative thereof having analogous action, in which the amino acids sequence is modified by omitting individual amino acids and/or by exchanging them for other amino acids, and in which the ε-amino group of the lysine residue in the 9-position, and optionally also the ε-amino group of the lysine residue in the 4-position and/or the N-terminal α-amino group carries the acyl radical of an optionally substituted alkanecarboxylic acid, and salts and complexes thereof can be used as antidiabetics and/or for combating gastrointestinal bleeding. They are manufactured by conventional methods of peptide chemistry.
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Citations
18 Claims
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1. An acylpeptide of the formula ##STR33## in which A'"'"' represents H--Ala--Gly--, Ac--Ala--Gly, H-- or Ac--,
B represents Lys, Lys(Ac) or Lys(X) (wherein X is an ε - -amino-protecting group),
trp represents L-Trp, D-Trp or an analogous radical, which carries in the indole nucleus a halogen atom, cys represents L-Cys or D-Cys and Ac represents an acyl radical of an optionally substituted alkanecarboxylic acid, present at the free amino group, and non-toxic salts and pharmacologically acceptable complexes thereof. - View Dependent Claims (17, 18)
- -amino-protecting group),
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2. An acylpeptide of the formula ##STR34## in which Bmp represents the desaminocysteine residue,
B represents Lys, Lys(Ac) or Lys(X) (wherein X is an ε - -amino-protecting group),
C'"'"' represents Asn or His, trp represents L-Trp, D-Trp or an analogous radical, which carries in the indole nucleus a halogen atom, G represents L-Ser, D-Ser or the residue of a secondary α
-amino acid having a maximum of 8 carbon atoms, andAc represents an acyl radical of an optionally substituted alkanecarboxylic acid, present at the free amino group, and non-toxic salts and pharmacologically acceptable complexes thereof.
- -amino-protecting group),
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3. An acylpeptide of the formula ##STR35## in which cys represents L-Cys or D-Cys,
B represents Lys, Lys(Ac) or Lys(X) (wherein X is an ε - -amino-protecting group),
Ac represents an acyl radical of an optionally substituted alkanecarboxylic acid, present at the free amino group, and a,b,c,f and g each represents, independently of one another, 0 or 1, and non-toxic salts and pharmacologically acceptable complexes thereof.
- -amino-protecting group),
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4. An acylpeptide of the formula ##STR36## in which trp represents L-Trp, D-Trp or an analogous radical, which carries in the indole nucleus a halogen atom, and
Ac represents an acyl radical of an optionally substituted alkanecarboxylic acid, present at the free amino group, and non-toxic salts and pharmacologically acceptable complexes thereof.
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5. An acylpeptide of the formula ##STR37## in which A" denotes the residue of an ω
- -amino-lower alkanecarboxylic acid of the partial formula --NH--CH(R)--(CH2)n --CO-- (wherein n represents 0 or an integer from 1 to 6 and R represents hydrogen or carboxyl) which, if n=2 and R is hydrogen, can also be substituted by a cyclic hydrocarbyl radical and, in that case, is designated by the symbol Gaba(Ar),
B represents Lys, Lys(Ac) or Lys(X) (wherein X is an ε
-amino-protecting group),C" represents Asn or Ala, trp represents L-Trp, D-Trp or an analogous radical, which carries in the indole nucleus a halogen atom, Ac represents an acyl radical of an optionally substituted alkanecarboxylic acid, present at the free amino group, and a,b,c,f and g each represents, independently of one another, 0 or 1, and non-toxic salts and pharmacologically acceptable complexes thereof. - View Dependent Claims (6, 7, 8)
- -amino-lower alkanecarboxylic acid of the partial formula --NH--CH(R)--(CH2)n --CO-- (wherein n represents 0 or an integer from 1 to 6 and R represents hydrogen or carboxyl) which, if n=2 and R is hydrogen, can also be substituted by a cyclic hydrocarbyl radical and, in that case, is designated by the symbol Gaba(Ar),
- 9. An acylpeptide of the formula ##STR38## in which trp0 represents D-Trp or D-(5F)Trp, Ac represents an acyl radical of an optionally substituted alkanecarboxylic acid, present at the free amino group, and U represents hydrogen or an optionally substituted cyclic hydrocarbyl radical Ar.
Specification