Abstract:
:The design and synthesis of potent and selective neurokinin NK-2 receptor agonists 12 (GR64349) and 31 are described, together with structure-activity relationships for related analogues. Compound 12 (EC50 = 3.7 nM at NK-2 receptors in the rat colon; selectivity > 1000- and > 300-fold with respect to NK-1 and NK-3 receptors, respectively) was derived by incorporation of a Gly-Leu gamma-lactam conformational constraint into the C-terminal region of the neurokinin A octapeptide analogue [Lys3]-NKA(3-10). Compound 31 (EC50 = 15 nM in rat colon) contains a novel fused-bicyclic constraint at the corresponding site in the substance P hexapeptide analogue [Ava6]-SP(6-11).
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Deal MJ,Hagan RM,Ireland SJ,Jordan CC,McElroy AB,Porter B,Ross BC,Stephens-Smith M,Ward Pdoi
10.1021/jm00100a027keywords:
subject
Has Abstractpub_date
1992-10-30 00:00:00pages
4195-204issue
22eissn
0022-2623issn
1520-4804journal_volume
35pub_type
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