Abstract:
:Selective CCK-A agonist activity has been reported to induce satiety in a variety of animals, including man, and thereby suggests a therapeutic role for CCK in the management of obesity. To date, three general classes of CCK-A agonists have been reported, the full-length, sulfated hepta- and hexapeptides, a series of tetrapeptides, and most recently a series of benzodiazepines. The SAR of the hexa- and tetrapeptide classes suggests that the Hpa(SO(3)H) and Tac groups may not interact at the CCK-A receptor in the same location. However, the C-terminal dipeptide part of the hexapeptides and tetrapeptides appear to interact at the CCK-A receptor in a similar manner. Compound 7 (Hpa-Nle-Gly-Trp-Lys(Tac)-Asp-MePhe-NH(2)) derived from combining the features of the hexapeptides and the tetrapeptides has subnanomolar affinity and 3500-fold selectivity for CCK-A receptors. Compound 7 administered intraperitoneally produces potent, long-lasting reduction in food intake in rats and a corresponding weight loss when administered over nine consecutive days.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Pierson ME,Comstock JM,Simmons RD,Julien R,Kaiser F,Rosamond JDdoi
10.1021/jm990252ekeywords:
subject
Has Abstractpub_date
2000-06-15 00:00:00pages
2350-5issue
12eissn
0022-2623issn
1520-4804pii
jm990252ejournal_volume
43pub_type
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