Pyrrolomorphinans as δ Opioid Receptor Antagonists. The Role of Steric Hindrance in Conferring Selectivity
摘要:
A series of 2',3'-disubstituted pyrrolomorphinans (5a-i) were synthesized to determine the role of steric hindrance at mu and kappa receptors in promoting delta opioid receptor antagonist selectivity. In smooth muscle preparations, five members of the series (5a-c,e,f) possessed K-e values in the range 2-15 nM and were delta selective. Since the unsubstituted analogue 4 possessed delta antagonist potency of similar magnitude, but was not delta selective, it is suggested that the 2',3'-substitution confers delta selectivity by hindering the interaction of the pharmacophore at mu and kappa receptors, while not affecting delta receptors.
作者:N. I. Aronova、N. N. Makhova、M. P. Unanyan、G. V. Kondrat'eva、N. A. Rodionova、S. I. Zav'yalov
DOI:10.1007/bf00903395
日期:1968.11
FLAVOR COMPOSITIONS AND PET FOOD PRODUCTS CONTAINING THE SAME
申请人:MARS, INCORPORATED
公开号:US20180168208A1
公开(公告)日:2018-06-21
A flavor composition comprising at least one nucleotide derivative and/or at least one transmembrane compound that modulates, increases and/or enhances the activity of an umami receptor is provided that can be used to enhance the umami taste and/or palatability of food products. In certain, non-limiting embodiments, the flavor composition comprises at least one nucleotide derivative and/or at least one transmembrane compound, optionally at least one nucleotide, optionally at least one first amino acid, optionally at least one second amino acid.
Pyrrolomorphinans as δ Opioid Receptor Antagonists. The Role of Steric Hindrance in Conferring Selectivity
作者:F. Farouz-Grant、P. S. Portoghese
DOI:10.1021/jm970189y
日期:1997.6.1
A series of 2',3'-disubstituted pyrrolomorphinans (5a-i) were synthesized to determine the role of steric hindrance at mu and kappa receptors in promoting delta opioid receptor antagonist selectivity. In smooth muscle preparations, five members of the series (5a-c,e,f) possessed K-e values in the range 2-15 nM and were delta selective. Since the unsubstituted analogue 4 possessed delta antagonist potency of similar magnitude, but was not delta selective, it is suggested that the 2',3'-substitution confers delta selectivity by hindering the interaction of the pharmacophore at mu and kappa receptors, while not affecting delta receptors.
Sekiya,M. et al., Chemical and pharmaceutical bulletin, 1970, vol. 18, p. 2074 - 2080