Substituted pyrazoles as novel selective ligands for the human dopamine D 4 receptor
摘要:
Two novel series of 3-(heterocyclylmethyl)pyrazoles have been synthesised and evaluated as ligands for the human dopamine D-4 receptor. Compounds in series I (exemplified by 8k) have a phenyl ring joined to the 4-position of the pyrazole while those in series II (exemplified by 15j) have a 5-phenyl ring linked by a saturated chain to the 4-position of the pyrazole. Both series supplied compounds with excellent affinity for the human D-4 and good selectivity over other dopamine receptors. Excellent selectivity over calcium, sodium, and potassium ion channels was also achieved. (C) 1998 Elsevier Science Ltd. All rights reserved.
Palladium(<scp>ii</scp>)-catalysed ortho-arylation of N-benzylpiperidines
作者:Peng Wen Tan、Maxwell Haughey、Darren J. Dixon
DOI:10.1039/c5cc00410a
日期:——
Pd(II)-catalysed ortho-arylation of benzylic heterocycles with arylboronic acid pinacol esters (Ar-BPin) via directed C-H bond activation to generate the desired biaryl products is reported. This methodology is efficient and applicable to a wide range of functionalised Ar-BPin and benzylic heterocycles, allowing the direct synthesis of important biaryl motifs in modest to good yield.
Substituted pyrazoles as novel selective ligands for the human dopamine D 4 receptor
作者:Sylvie Bourrain、Ian Collins、Joseph G. Neduvelil、Michael Rowley、Paul D. Leeson、Smita Patel、Shil Patel、Frances Emms、Rosemarie Marwood、Kerry L. Chapman、Alan E. Fletcher、Graham A. Showell
DOI:10.1016/s0968-0896(98)00134-5
日期:1998.10
Two novel series of 3-(heterocyclylmethyl)pyrazoles have been synthesised and evaluated as ligands for the human dopamine D-4 receptor. Compounds in series I (exemplified by 8k) have a phenyl ring joined to the 4-position of the pyrazole while those in series II (exemplified by 15j) have a 5-phenyl ring linked by a saturated chain to the 4-position of the pyrazole. Both series supplied compounds with excellent affinity for the human D-4 and good selectivity over other dopamine receptors. Excellent selectivity over calcium, sodium, and potassium ion channels was also achieved. (C) 1998 Elsevier Science Ltd. All rights reserved.