Novel transition metal salts of a polypeptide represented by formula (1), having a high antiviral activity against human immunodeficiency virus (HIV). These compounds stably exhibit an anti-HIV activity higher than the one exhibited by ionic salts thereof with ordinary pharmaceutically acceptable acids because they form complex salts. A representative salt is one represented by formula (1).
由式(1)表示的
多肽的新型过渡
金属盐,对人类免疫缺陷病毒(HIV)具有很高的抗病毒活性。这些化合物与普通药学上可接受的酸形成复盐,因此其抗病毒活性高于其离子盐。具有代表性的盐是由式(1)表示的盐。