Synthesis of somatostatin analogs resistant to the action of trypsin |
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Authors: | M C Allen R Wade |
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Institution: | Ciba-Geigy Pharmaceuticals, Research Centre, Horsham, West Sussex, England. |
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Abstract: | The synthesis of a series of octapeptides based on the somatostatin analog cyclo(-Asn-Phe-Phe-D-Trp-Lys-Thr-Phe-Gaba-) containing the substitutions Aap9], D-Lys9], L-Trp8, D-Lys9], L-Orn9] and D-aThr10] is reported. The analogs were designed and have been shown to inhibit proteolysis at the proposed (1) primary cleavage site between Lys9-Thr10 and thereby increase their stability to enzymic attack. |
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