摘要:
Novel protecting groups for peptides containing a cysteine residue. Process for the synthesis of peptides containing a cysteine residue wherein the mercapto function of the cysteine residue is protected by an acetamidomethyl radical or other labile blocking group. Novel intermediates useful in peptide synthesis.
摘要:
A process for preparing peptides containing lysine wherein the terminal amino group of lysine is protected by a pyridyl-4-methyloxycarbonyl group during formation of the peptide and removing this group with zinc in acid.
摘要:
Somatostatin analogs having the structural formula: ##STR1## are prepared by controlled stepwise procedures starting with individual amino acid components. These peptides have the property of lowering blood glucose, inhibiting gastric secretion, inhibiting growth hormone release and inhibiting glucagon release in humans and animals.
摘要:
A novel tetrapeptide L-2-ketopiperidine-6-carbonyl-L-histidyl-L-thiazolidine-4-carbonyl-.beta.-alanin-amide, (L-Kpc-L-His-L-Tca-.beta.-ala-NH.sub.2), is a stimulant of the central nervous system. It is preparable by standard peptide synthetic procedures.
摘要:
The disclosed invention relates to .epsilon.-N-pyridyl-4-methyloxycarbonyllysine valuable in the synthesis of lysine containing peptides to the process of preparing this compound starting with 4-pyridyl-carbinol and succinimido-chloroformate and to the pyridyl-4-methyl-succinimidocarbonate intermediate in this process.
摘要:
The disclosed invention relates to .epsilon.-N-pyridyl-4-methyloxycarbonyllysine valuable in the synthesis of lysine containing peptides to the process of preparing this compound starting with 4-pyridylcarbinol and succinimido-chloroformate and to the pyridyl-4-methyl-succinimidocarbonate intermediate in this process.
摘要:
This invention relates to compounds of formula (I): wherein: Y is Ar or NR1R2; R1 is R″, R″C(O), R″C(S), R″SO2, R″OC(O), R″R′NC(O), or R″R′NC(S); R2 is H, C1-6alkyl, C2-6alkenyl, Ar-C0-6alkyl, or Het-C0-6alkyl; R3 is H, C2-6alkenyl, C2-6alkynyl, Het, Ar or C1-6alkyl optionally substituted by OR′, SR′, NR′2, N(R′)C(O)OR″, CO2R′, CO2NR′2, N(C═NH)NH2, Het or Ar; R4 is H, C1-6alkyl, C2-6alkenyl, Ar-C0-6alkyl, or Het-C0-6alkyl; R5 is Ar-C0-6alkyl, Het-C0-6alkyl, adamantyl-C(O)—, Ar-C(O)—, Het-C(O)— or; R6 is R″, R″C(O), R″C(S), R″SO2, R″OC(O), R″R′NC(O), R″R′NC(S), or R″OC(O)NR′CH(R*)C(O); R7 is C3-6cycloalkyl-C0-6alkyl, Ar-C0-6alkyl, Het-C0-6alkyl, Ar-C0-6alkoxy, Het-C0-6alkoxy, or C1-6alkyl optionally substituted by OR′, SR′, NR′2, N(R′)C(O)OR″, CO2R′, CO2NR′2, N(C═NH)NH2, Het or Ar; R* is H, C1-6alkyl, C2-6alkenyl, C3-6cycloalkyl-C0-6-alkyl, Ar-C0-6alkyl, Het-C0-6alkyl; each R′ independently is H, C1-6alkyl, C2-6alkenyl, Ar-C0-6alkyl, or Het-C0-6alkyl; each R″ independently is C1-6alkyl, C3-6cycloalkyl-C0-6-alkyl, Ar-C0-6alkyl, or Het-C0-6alkyl; R′″ is H, C1-6alkyl, C3-6cycloalkyl-C0-6alkyl, Ar-C0-6alkyl, or Het-C0-6alkyl; Z is C(O) or CH2; and n is 1, 2 or 3; or a pharmaceutically acceptable salt thereof, which are inhibitors of cysteine proteases, particularly cathepsin K, and are useful in the treatment of diseases in which inhibition of bone loss is a factor.
摘要:
Analogs of substance P and eledoisin which are conformationally constrained by the presence of a lactam in the peptide chain demonstrate greater selectivity and increased protease stability and are useful as analgesic, anti-inflammatory, antihypertensive, central nervous system agents, and stimulants of lachrymal secretion. The compounds are prepared by standard peptide synthetic procedures.
摘要:
Renin inhibitory peptides of the formula ##STR1## and analogs thereof inhibit renin and are useful for treating various forms of renin-associated hypertension and hyperalaosteronism.
摘要:
Renin inhibitory peptides of the formula ##STR1## and analogs thereof inhibit renin and are useful for treating various forms of renin-associated hypertension and hyperaldosteronism.