Peptides intermediates for making GnRH antagonists
US6747125B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1996 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Oct 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S930/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Peptides which include unnatural amino acids and which either promote or inhibit the secretion of gonadotropins by the pituitary gland and inhibit the release of steroids by the gonads. Administration of an effective amount of such peptides that are GnRH antagonists prevents ovulation of female mammalian eggs and/or the release of steroids by the gonads and may be used to treat steroid-dependent tumors. The agonists can be used for control of reproduction processes, to treat precocious puberty, endometriosis, and the like. The peptides are analogs of the decapeptide GnRH wherein there is at least one residue of an unnatural amino acid in the 3-, 5-, 6- and/or 8-positions. Unnatural amino acids having the following formula are incorporated in a preferred group of synthesized peptides:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.