Synthesis and pharmacological evaluation of chlorinated N-alkyl-3- and -5-(2-hydroxyphenyl)pyrazoles as CB1 cannabinoid ligands

被引:17
作者
Silva, Vera L. M.
Silva, Artur M. S. [1 ]
Pinto, Diana C. G. A.
Jagerovic, Nadine
Callado, Luis F.
Cavaleiro, Jose A. S.
Elguero, Jose
机构
[1] Univ Aveiro, Dept Chem, P-3800 Aveiro, Portugal
[2] Inst Quim Med, CSIC, Inst Quim Med, Madrid, Spain
[3] Univ Basque Country, Dept Pharmacol, UPV EHU, Bizkaia, Spain
来源
MONATSHEFTE FUR CHEMIE | 2007年 / 138卷 / 08期
关键词
3-and 5-(2-hydroxyphenyl)-N-alkylpyrazoles; chloropyrazoles; NMR spectroscopy; CB1 cannabinoid receptors; radioligand;
D O I
10.1007/s00706-007-0676-4
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The syntheses of several new 3- and 5-(4-chloro-2-hydroxyphenyl)-5- and -3-(2,4-dichlorophenyl)-1-alkylpyrazoles are reported. These syntheses started from simple chlorophenols, 2,4-dichlorobenzaldehyde or ethyl 2,4-dichlorobenzoate in order to prepare pyrazoles bearing three and four chloro substituents in certain positions. The affinity of these compounds towards the CB1 type cannabinoids receptors was then evaluated in human brain tissues (frontal cortex). The results showed that some of the compounds exhibit affinity towards this kind of receptors in the micromolar range.
引用
收藏
页码:797 / 811
页数:15
相关论文
共 22 条
[1]   Molecular rearrangement of some o-acyloxyacetophenones and the mechanism of the production of 3-acylchromones [J].
Baker, W .
JOURNAL OF THE CHEMICAL SOCIETY, 1933, :1381-1389
[2]  
Callado LF, 1998, J NEUROCHEM, V70, P1114
[3]   The endocannabinoid system and its therapeutic exploitation [J].
Di Marzo, V ;
Bifulco, M ;
De Petrocellis, L .
NATURE REVIEWS DRUG DISCOVERY, 2004, 3 (09) :771-784
[4]  
Elguero J., 2002, TARGETS HETEROCYCL S, V6, P52, DOI DOI 10.12691/WJOC-5-1-4
[5]   ISOLATION, STRUCTURE, AND PARTIAL SYNTHESIS OF AN ACTIVE CONSTITUENT OF HASHISH [J].
GAONI, Y ;
MECHOULAM, R .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1964, 86 (08) :1646-+
[6]   Chalcones: An update on cytotoxic and chemoprotective properties [J].
Go, ML ;
Wu, X ;
Liu, XL .
CURRENT MEDICINAL CHEMISTRY, 2005, 12 (04) :483-499
[7]   N-ALKYLATION AND N-ARYLATION OF UNSYMMETRICAL PYRAZOLES [J].
GRIMMETT, MR ;
LIM, KHR ;
WEAVERS, RT .
AUSTRALIAN JOURNAL OF CHEMISTRY, 1979, 32 (10) :2203-2213
[8]   International Union of Pharmacology. XXVII. Classification of cannabinoid receptors [J].
Howlett, AC ;
Barth, F ;
Bonner, TI ;
Cabral, G ;
Casellas, P ;
Devane, WA ;
Felder, CC ;
Herkenham, M ;
Mackie, K ;
Martin, BR ;
Mechoulam, R ;
Pertwee, RG .
PHARMACOLOGICAL REVIEWS, 2002, 54 (02) :161-202
[9]   Discovery of 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-3-hexyl-1H-1,2,4-triazole, a novel in vivo cannabinoid antagonist containing a 1,2,4-triazole motif [J].
Jagerovic, N ;
Hernandez-Folgado, L ;
Alkorta, I ;
Goya, P ;
Navarro, M ;
Serrano, A ;
de Fonseca, FR ;
Dannert, MT ;
Alsasua, A ;
Suardiaz, M ;
Pascual, D ;
Martín, MI .
JOURNAL OF MEDICINAL CHEMISTRY, 2004, 47 (11) :2939-2942
[10]   The endocannabinoid system: Drug targets, lead compounds, and potential therapeutic applications [J].
Lambert, DM ;
Fowler, CJ .
JOURNAL OF MEDICINAL CHEMISTRY, 2005, 48 (16) :5059-5087