Thymosin .alpha..sub.1, was chemically synthesized by the fragment condensation of the protected amino terminal tetradecapeptide with the protected carboxyl terminal tetradecapeptide. Similarly prepared was the analog [Asn.sup.2 ]-thymosin .alpha..sub.1 utilizing the appropriately modified protected amino terminal tetradecapeptide. Both products are active as agents which affect regulation, differentiation and function of thymus dependent lymphocytes (T cells).
Thymosin .alpha..sub.1是通过保护的
氨基端十四肽和保护的羧基端十四肽的片段缩合
化学合成的。类似地,使用适当改性的保护
氨基端十四肽制备了[Asn.sup.2 ]-thymosin .alpha..sub.1类似物。这两种产物都是影响胸腺依赖性淋巴细胞(T细胞)的调节、分化和功能的活性剂。