A process for the manufacture of 1-deamino-8-D-arginine vasopressin (DDAVP) comprising, condensing a preparation of Mpa(R.sup.1)-Tyr-Phe-Gln-Asn-Cys(R.sup.2)-Pro-OH (SEQ ID NO: 1), where R.sup.1 and R.sup.2 are sulfhydryl-protecting groups, with the dipeptide (R.sup.3)-D-Arg(HCl)-Gly-NH.sub.2, where R.sup.3 is an acid-sensitive amino-protecting group, to form Mpa(R.sup.1)-Tyr-Phe-Gln-Asn-Cys(R.sup.2)-Pro-D-Arg(HCl)-Gly-NH.sub.2 (SEQ ID NO: 1), which is oxidized with iodine in a protic solvent. The reaction mixture containing the oxidized product can be purified by ion exchange chromatography on a cation exchange resin equilibrated with acid. Also disclosed is high-purity DDAVP obtained by this process and its use for treating diurea.
一种制造1-去
氨基-8-D-
精氨酸加压素(DDAVP)的方法,包括将Mpa(R.sup.1)-Tyr-Phe-Gln-Asn-Cys(R.sup.2)-Pro-OH(
SEQ ID NO:1)的制备物与二肽(R.sup.3)-D-Arg(HCl)-Gly-NH.sub.2(其中R.sup.3是酸敏感的
氨基保护基团)缩合,形成Mpa(R.sup.1)-Tyr-Phe-Gln-Asn-Cys(R.sup.2)-Pro-D-Arg(HCl)-Gly-NH.sub.2(
SEQ ID NO:1),然后在质子溶剂中用
碘氧化。含氧化产物的反应混合物可以通过在酸平衡下的阳离子交换
树脂上进行离子交换色谱层析来纯化。本发明还披露了使用该方法获得的高纯度DDAVP以及其用于治疗利尿症的用途。