C - Chemistry – Metallurgy – 07 – K
Patent
C - Chemistry, Metallurgy
07
K
C07K 7/23 (2006.01) A61K 38/09 (2006.01) A61K 38/00 (2006.01)
Patent
CA 2048407
Peptides of the formula 1 2 3 4 5 6 7 8 9 10 X - A - B - C - Ser - D - E - F - G - Pro - H in which X is alkanoyl, A is optionally substituted D-Nal(2), D-Phe or D-Trp, B is optionally substituted D-Phe, C is D-Pal(3) or optionally substituted D-Phe or D- Trp, and D is Tyr or His, E is D-Ser (R1), F is Leu, Trp or Phe, G is L- Ser(R1), H is Gly-NH2, D-Ala-NH2 or Azagly-NH2 and R1 is a glycosyl radical have an inhibitory effect on the formation of the gonadotropins lutropin and follitropin and thus also on the synthesis of testo-sterone and estrogen. A process for the preparation of these peptides is described.
Kolar Cenek
Konig Wolfgang
Sandow Jurgen
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hoechst Aktiengesellschaft
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