摘要:
Novel peptides represented by the following formulaR.sub.1 --A--B--C--D--Trp--Met--Y (1)wherein; R.sub.1 denotes pGlu, X--R.sub.2 --CO--, X being carboxyl or amino and R.sub.2 being lower alkylene of 1-6 carbon atoms, or ##STR1## A denotes Asp, Ala, or merely a chemical bond; B denotes Tyr(SO.sub.3 H) or Phe(NHSO.sub.3 H); C denotes Met or merely a chemical bond; D denotes Gly, D--Ala, or D--Trp; and Y denotes NH.sub.2, Asp--NH.sub.2, or Asp--Phe--NH.sub.2 ; with the proviso that Y is NH.sub.2 or Asp--NH.sub.2 when R.sub.1 is pGlu, HOOC--R.sub.2 --CO--, or ##STR2## B is Tyr(SO.sub.3 H), C is Met, and D is Gly, and pharmacologically acceptable salts thereof.
摘要:
This invention provides a peptide represented by the formulaR--Tyr(SO.sub.3 H)--Met--Gly--Trp--Met--Asp--W--NH.sub.2wherein R is HOOC--A--CO--Asp-- (wherein A is lower alkylene), pGlu--Asp--, HOOC--A--CO-- (wherein A is lower alkylene) or ##STR1## and W is Phe or N.sup..alpha. -lower alkyl-Phe, or a salt thereof, process for preparing the peptide and psychodepressant composition containing the peptide.The peptides of the invention are useful as psychodepressant drug, and especially effective for curing schizophrenia.
摘要:
This invention relates to a process for the determination of free fatty acids comprising a reaction system 1 in which acyl coenzyme A synthetase is allowed to act on the free fatty acids in the presence of adenosine triphosphate and coenzyme A to yield acyl coenzyme A and a reaction system 2 in which acyl coenzyme A oxidase is allowed to act on the acyl coenzyme A to form hydrogen peroxide, followed by the determination thereof, said process being characterized in that myokinase is added in the reaction system 1 to make it go rapidly to completion.
摘要:
A novel process for the production of cholecystokininpancreozymin C-terminal peptide amide sulfate esters in a high yield and through a simple operation is described. A protected peptide amide is reacted with sulfur trioxide-pyridine complex and resulting protected piptide amide sulfate ester is then isolated in the form of its calcium salt. Thereafter, the protecting groups and calcium are removed. Sulfuric acid resulting from unreacted sulfur trioxide-pyridine complex may be precipitated and easily removed in the form of calcium sulfate.