Peptides of the formula: A--Trp--B--Asp--Phe--NH--Y wherein A is tert.-butoxycarbonyl-aminooxy-acyl, benzyloxycarbonyl-aminooxy-acyl, (aminooxy)-acyl, or E-aminooxy-acyl, wherein E is benzoyl or straight-chain or branched C.sub.1-5 aliphatic acyl, B is methionyl, leucyl, norleucyl, norvalyl or 2-amino-decanoyl, and Y is hydrogen or carboxymethoxy, and pharmaceutically acceptable acid-addition salts or complexes thereof have gastric-acid secretion increasing effects.
公式为:A--Trp--B--Asp--Phe--NH--Y的肽,其中A为tert.-butoxycarbonyl-aminooxy-acyl,benzyloxycarbonyl-aminooxy-acyl,(aminooxy)-acyl或E-aminooxy-acyl,其中E为苯甲酰基或直链或支链C.sub.1-5脂肪族酰基,B为甲
硫氨酰基,亮
氨酰基,诺亚鲁
氨酰基,诺伐
氨酰基或2-
氨基癸酰基,Y为氢或羧甲氧基,其药学上可接受的酸盐或复合物具有增加胃酸分泌的作用。