Ceskoslovenska Akademie Ved

Frantisek Brtnik

Tomislav Barth

Karel Jost

Alena Machova

Linda Servitova

Ivan Krejci

Jana Skopkova

Petr Simek

Pavel Hrbas

Jirina Slantinova

Bela Kupkova

The invention pertains to analogs of neurohypophysial hormones evidencing inhibition effects of the chemical formula I ##STR1## where A is CH.sub.3 CO or H, V is a residue of penicilamine or cysteine, B is CH.sub.3 or H, X is a residue of isoleucine or phenylalanine, Y is a residue of penicilamine or cysteine, and Z is a residue of leucine or lysine. These analogues evidence inhibition effects towards certain biological activities of neurohypophysial hormones.

Analogs of neurohypophysial hormones with inhibition effects

Vasopressin analogs of the formula ##STR1## wherein R.sup.1 is H, R.sup.2 is CH.sub.2 S and R.sup.3 is D-Arg,

Analogs of vasopressin

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Prague, Czechia

Frantisek Brtnik