Structure−Affinity Relationships of a Unique Nicotinic Ligand: N-Dimethyl-N4-phenylpiperazinium Iodide (DMPP)
摘要:
DMPP is a well-known nicotinic agonist that does not fit any proposed pharmacophore for nicotinic binding and represents a unique ligand among the hundreds of nicotinic agonists studied in the past decades. A systematic modulation of the chemical structure of DMPP, aimed to establish its structure-affinity relationships, is reported. The research has allowed to identify molecules such as I Ic, 13c, 14c, and 28c, with affinities for alpha (4)beta (2) receptors in the low nanomolar range, some 2 orders of magnitude lower than the lead compound. The agonistic properties of the most interesting compounds have been assessed by measuring their analgesic activity on mice (hot-plate test). Another result of the research was the identification of DMPP analogues, such as 3a (K-i = 90 nM) and 14b (K-i = 180 nM), that maintain affinity for the central nicotinic receptor when the ammonium function is changed into an aminic one and are therefore possible leads for drug development in neurodegenerative diseases.
Synthesis and antinociceptive activity of 6-substituted-3-pyridazinone derivatives
作者:Mehtap Gokçe、Deniz Dogruer、Mustafa Fethi Sahin
DOI:10.1016/s0014-827x(01)01037-0
日期:2001.4
A series of 3-pyridazinones carrying morpholino, arylpiperidino and arylpiperazino moiety in the position 6 IIa-g were synthesized and evaluated for antinociceptive activity. In the modified Koster test in mice 4-(4-fluorophenyl) piperazine, IIf, was found the most active compound. All the compounds except IId were more active than aspirin in the antinociceptive activity test. (C) 2001 Elsevier Science S.A. All rights reserved.
DELTA 1-PYRROLINE ALS SCHÄDLINGSBEKÄMPFUNGSMITTEL
申请人:Bayer CropScience AG
公开号:EP1347957A1
公开(公告)日:2003-10-01
[DE] DELTA 1-PYRROLINE ALS SCHÄDLINGSBEKÄMPFUNGSMITTEL<br/>[EN] DELTA 1-PYRROLINES USED AS PESTICIDES<br/>[FR] DELTA 1-PYRROLINES UTILISEES COMME AGENTS DE LUTTE CONTRE LES PARASITES
申请人:BAYER AG
公开号:WO2002046151A1
公开(公告)日:2002-06-13
Neue Delta1-Pyrroline der Formel (I) in welcher R1, R2, R3, m und Q die in der Beschreibung angegebenen Bedeutungen haben, mehrere Verfahren zur Herstellung dieser Stoffe und deren Verwendung zur Bekämpfung von Schädlingen.
Structure−Affinity Relationships of a Unique Nicotinic Ligand: N-Dimethyl-N<sup>4</sup>-phenylpiperazinium Iodide (DMPP)
DMPP is a well-known nicotinic agonist that does not fit any proposed pharmacophore for nicotinic binding and represents a unique ligand among the hundreds of nicotinic agonists studied in the past decades. A systematic modulation of the chemical structure of DMPP, aimed to establish its structure-affinity relationships, is reported. The research has allowed to identify molecules such as I Ic, 13c, 14c, and 28c, with affinities for alpha (4)beta (2) receptors in the low nanomolar range, some 2 orders of magnitude lower than the lead compound. The agonistic properties of the most interesting compounds have been assessed by measuring their analgesic activity on mice (hot-plate test). Another result of the research was the identification of DMPP analogues, such as 3a (K-i = 90 nM) and 14b (K-i = 180 nM), that maintain affinity for the central nicotinic receptor when the ammonium function is changed into an aminic one and are therefore possible leads for drug development in neurodegenerative diseases.
Synthesis of antipyrine/pyridazinone hybrids and investigation of their in vivo analgesic and anti-inflammatory activities
作者:SULTAN BAYTAŞ、NAZAN İNCELER、KHATEREH FATTAHPOUR MAVANEH、MECİT ORHAN ULUDAĞ、NURETTİN ABACIOĞLU、MEHTAP GÖKÇE
DOI:10.3906/kim-1111-29
日期:——
Eleven antipyrine/pyridazinone hybrids were synthesized and evaluated for their in vivo analgesic and anti-inflammatory activities by p-benzoquinone-induced writhing test and carrageenan-induced paw edema model, respectively. The test results indicated that compounds 6a, 6c, and 6d were equally or more potent analgesic and anti-inflammatory agents than aspirin and indomethacin, respectively. Side effects of the compounds were examined on gastric mucosa. Most of the compounds were found to be non-ulcerogenic under test conditions.