摘要:
Novel polypeptides of the formulaR.sub.1 --Arg--R.sub.2 --Phe--Phe--R.sub.3wherein R.sub.1 is hydrogen, or a basic or neutral amino acid residue, R.sub.2 is a neutral amino acid residue and R.sub.3 is NH.sub.2, Tyr--NH.sub.2, a residue of tyrosyl peptides consisting of 1 to 5 amino acid residues or amides of the tyrosyl peptides, provided that when R.sub.1 is hydrogen, R.sub.2 is Pro, are effectively used for treatment of insufficiency of carbohydrate metabolism and of lipid metabolism, especially for the treatment of diabetes by not only parenteral administration but also oral administration.
摘要:
Novel polypeptides of the formulaR.sub.1 --Arg--R.sub.2 --Phe--Phe--R.sub.3wherein R.sub.1 is hydrogen, or a basic or neutral amino acid residue, R.sub.2 is a neutral amino acid residue and R.sub.3 is NH.sub.2, Tyr--NH.sub.2, a residue of tyrosyl peptides consisting of 1 to 5 amino acid residues or amides of the tyrosyl peptides, provided that when R.sub.1 is hydrogen, R.sub.2 is Pro, are effectively used for treatment of insufficiency of carbohydrate metabolism and of lipid metabolism, especially for the treatment of diabetes by not only parenteral administration but also oral administration.
摘要:
Novel polypeptide of the formula:H-Tyr-Gly-Gly-Phe-Met-Lys-Pro-Tyr-Thr-Lys-Gln-Ser-His-Lys-Pro-Leu-Ile-Thr-Leu-Leu-Lys-His-Ile-Thr-Leu-Lys-Asn-Glu-Gln-OH is useful as an analgesic agent. Methods of its preparation are also disclosed.
摘要:
A novel dipeptide, L-aspartyl-aminomalonic acid methyl 2-methylcyclohexyl diester and its physiologically acceptable salts which are useful as a sweetener, and production thereof and sweetening compositions containing the dipeptide or its salt.
摘要:
Novel tetrapeptide acylhydrazides, inclusive of acid addition salts thereof, which have the formula: ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 is lower alkyl; are useful as analgesics.
摘要:
A peptide derivative of the formula ##STR1## wherein A is hydrogen or a hydrocarbon acyl having 2 to 18 carbon atoms which is substituted by an amino group at the .alpha.-position; B is F-Gly wherein F is a neutral .alpha.-amino acid residue, or NH-(CH.sub.2)nCO wherein n is an integer of 1 to 4; C is a neutral .alpha.-amino acid residue; and E is L-Arg or D-Arg; when A, B and C are hydrogen, Gly-Gly, and Met or Ile, respectively, E is D-Arg, or its pharmacologically acceptable salt has strong hypotensive and natriuretic activity; therefore it is useful as a therapeutic drug for hypertension, a diuretic, and a therapeutic drug for cardiac and cerebral circulatory diseases.
摘要:
An .omega.-amino group and/or .alpha.-amino group in an amino acid or a peptide can be protected with a 4-methoxy-2,3,6-trimethylbenzenesulfonyl group, and said group may easily be removed without affecting the amino acid or the peptide. Thus, the present invention is useful in the synthesis of peptide containing .omega.-amino group and/or .alpha.-amino group.
摘要:
Novel tetrapeptidesemicarbazide derivatives, inclusive of a pharmacologically acceptable salt thereof, which has the general formula (I): ##STR1## wherein R.sub.1 is hydrogen or lower alkyl; R.sub.2 is hydrogen or a D-.alpha.-amino acid side chain; R.sub.3 is hydrogen or lower alkyl; X is oxygen or sulfur, are useful as analgesics.
摘要:
(a) A novel glucagon fragment (15-29) of the formula:H-Asp-Ser-Arg-Arg-Ala-Gln-Asp-Phe-Val-Gln-Trp-Leu-Met-Asn-Thr-OH,(b) a novel product obtained by conjugating the glucagon fragment (15-29) with bovine serum albumin by means of glutalaldehyde,(c) a novel antibody specifically reactive to pancreatic glucagon produced by administering to a mammalian animal the product of the above (b), and(d) a novel peptide of the formula ##STR1## wherein R.sub.1 and R.sub.2 respectively mean H or radioactive I, R.sub.3 is an alkane residue having up to 4 carbon atoms which may optionally have NH.sub.2 or OH, R.sub.4 is a peptide fragment corresponding to the 1 to 5 amino acid residues ending with the 19-alanyl of pancreatic glucagon, and R.sub.5 is Met or Nle, being efficiently useful for estimation by radioimmunoassay of pancreatic glucagon levels in blood together with the antibody of the above (c).
摘要:
Compounds having antagonistic activity on endothelin receptors can be effectively used for prophylaxis and/or treatment of hypofunction of organs which occurs in their surgery or transplant.