Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 stand for alk-2-enyl radicals of not more than 6 carbon atoms, A stands for Gly or Azgly, B stands for Leu or Met, J stands for --(CH.sub.2).sub.n --, wherein n stands for an integer from 1 to 10, or a phenylene radical, and pharmaceutically-acceptable acid-addition salts thereof. Processes for the manufacture of the compounds. Pharmaceutical compositions comprising one of the compounds and a pharmaceutical diluent or carrier. The compounds are selective .delta.-opiate-receptor antagonists.

Abstract: The disclosure relates to novel polypeptides which possess analgesic activity, to processes for their manufacture and to pharmaceutical compositions containing them.

Abstract: This invention provides a method of enhancing, or preventing the decline in, the digestibility of a crop, in particular of a fodder crop, by applying to the crop, to seed of the crop, or to the locus of the crop or seed, a compound or a mixture of at least two compounds of general formula (I) ##STR1## wherein R is hydrogen or --COR.sup.1 wherein R.sup.1 is alkyl, aryl, aralkyl, alkoxy, aryloxy or aralkyloxy, X is --O--, --NE-- or --CH.sub.2 --, Y is carboxy or an alkali metal, ammonium or mono- or di-alkyl- or cycloalkylamine salt thereof, or Y is alkoxycarbonyl, aryloxycarbonyl, aralkyloxy- carbonyl, amino or mono- or di-alkyl- or aryl- amino, Z is hydrogen, halogen, nitro, alkyl, trihalomethyl, hydroxy, alkoxy, acyloxy, cyano or alkylenedioxy, and x is an integer of 1 to 3. The invention also provides novel compounds, namely L-.alpha.-aminooxy-.beta.-(parahydroxy phenyl) propionic acid, and acid addition salts thereof.

Abstract: The disclosure relates to novel polypeptides which possess analgesic and sedative activity, to processes for their manufacture and to compositions containing them. Typical of the peptides disclosed isH-Tyr-D-Ala-Gly-Phe-Leu-Ala-Ile-Ile-Lys-Asn-Ala-Tyr-Lys-Lys-OH.