Ferring B.v.

Ferring Ab

Krister Larsson

Jan-Ake Skoldback

Birgitta Mornstam

Jan Roschester

Thomas Mellbrand

Jens-Peter No Slashedrgaard

Ragner Asplund

A process for the manufacture of high purity desmopressin produced in single batches of substantial size and a method of treating nocturia, incontinence and enuresis with the high purity desmopressin produced therefrom.

Desmopressin for nocturia, incontinence and enuresis

A process for the manufacture of high purity desmopressin produced in single batches of substantial size and a method of treating diabetes insipidus with the high purity desmopressin produced therefrom.

High-purity desmopressin produced in large single batches

High purity desmopressin produced in large single batches

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.

Process for manufacture of 1-deamino-8-D-arginine vasopressin

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Malmo, Sweden

Krister Larsson