1
|
Ramírez-Vázquez DG, Viñas-Bravo O, Martínez-Pascual R, Pérez-Picaso L, Castro-Cerritos KV. DMF·HCl as a versatile and straightforward N- and O-formylating agent. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1844901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Omar Viñas-Bravo
- Instituto de Química Aplicada, Universidad del Papaloapan, Tuxtepec, México
| | | | | | | |
Collapse
|
2
|
Papa V, Cabrero-Antonino JR, Spannenberg A, Junge K, Beller M. Homogeneous cobalt-catalyzed deoxygenative hydrogenation of amides to amines. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01078b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, the first general and efficient homogeneous cobalt-catalyzed deoxygenative hydrogenation of amides to amines is presented.
Collapse
Affiliation(s)
- Veronica Papa
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock
- Germany
| | - Jose R. Cabrero-Antonino
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock
- Germany
- Instituto de Tecnología Química
- Universitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC)
| | | | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock
- Germany
| | | |
Collapse
|
3
|
Jia L, Tang Q, Luo M, Zeng X. Direct ortho-Selective Amination of 2-Naphthol and Its Analogues with Hydrazines. J Org Chem 2018; 83:5082-5091. [PMID: 29644862 DOI: 10.1021/acs.joc.8b00421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Described herein is a regioselective ortho-amination of 2-naphthol and its analogues with substituted hydrazines. It provides a direct methodology for the synthesis of N-arylaminated naphthol derivatives without the formation of related 1,1'-biaryl-2,2'-diamine or carbazole byproducts. Specifically, using N, N-disubstituted hydrazine precursors, N-unsubstituted ortho-aminated derivatives and related secondary amines can be formed in ethylene glycol in moderate to excellent yields. Variation of substrates to N, N'-diarylhydrazines and N-methyl- N, N'-diarylhydrazines led to N-aryl-1-amino-2-naphthol compounds. It is noted that biologically interesting indazole motifs can be facilely created by the reaction of N, N'-dialkylhydrazines with 2-naphthols. These ortho-amination reactions have the advantage of one-pot operation without the use of transition metal catalysts.
Collapse
Affiliation(s)
- Lei Jia
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , PR China
| | - Qiang Tang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , PR China.,College of Pharmacy , Chongqing Medical University , Chongqing 400016 , PR China
| | - Meiming Luo
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , PR China
| | - Xiaoming Zeng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , PR China
| |
Collapse
|
4
|
Jia L, Gao S, Xie J, Luo M. Iron-Catalyzed Direct Alkylamination of Phenols withO-Benzoyl-N-alkylhydroxylamines under Mild Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600700] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lei Jia
- Key Laboratory of Green Chemistry and Technology of Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Sen Gao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Junyao Xie
- Key Laboratory of Green Chemistry and Technology of Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Meiming Luo
- Key Laboratory of Green Chemistry and Technology of Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| |
Collapse
|
5
|
Catalano A, Luciani R, Carocci A, Cortesi D, Pozzi C, Borsari C, Ferrari S, Mangani S. X-ray crystal structures of Enterococcus faecalis thymidylate synthase with folate binding site inhibitors. Eur J Med Chem 2016; 123:649-664. [PMID: 27517810 DOI: 10.1016/j.ejmech.2016.07.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/25/2016] [Accepted: 07/26/2016] [Indexed: 11/26/2022]
Abstract
Infections caused by Enterococcus faecalis (Ef) represent nowadays a relevant health problem. We selected Thymidylate synthase (TS) from this organism as a potential specific target for antibacterial therapy. We have previously demonstrated that species-specific inhibition of the protein can be achieved despite the relatively high structural similarity among bacterial TSs and human TS. We had previously obtained the EfTS crystal structure of the protein in complex with the metabolite 5-formyl-tetrahydrofolate (5-FTHF) suggesting the protein role as metabolite reservoir; however, protein-inhibitors complexes were still missing. In the present work we identified some inhibitors bearing the phthalimidic core from our in-house library and we performed crystallographic screening towards EfTS. We obtained two X-ray crystallographic structures: the first with a weak phthalimidic inhibitor bound in one subunit and 5-hydroxymethylene-6-hydrofolic acid (5-HMHF) in the other subunit; a second X-ray structure complex with methotrexate. The structural information achieved confirm the role of EfTS as an enzyme involved in the folate pool system and provide a structural basis for structure-based drug design.
Collapse
Affiliation(s)
- Alessia Catalano
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", Via Orabona 4, 70125 Bari, Italy
| | - Rosaria Luciani
- Dipartimento di Scienze della Vita, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Alessia Carocci
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", Via Orabona 4, 70125 Bari, Italy
| | - Debora Cortesi
- Dipartimento di Scienze della Vita, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Cecilia Pozzi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Chiara Borsari
- Dipartimento di Scienze della Vita, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Stefania Ferrari
- Dipartimento di Scienze della Vita, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy.
| | - Stefano Mangani
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy.
| |
Collapse
|
6
|
|
7
|
Liégeois JF, Lespagnard M, Meneses Salas E, Mangin F, Scuvée-Moreau J, Dilly S. Enhancing a CH-π Interaction to Increase the Affinity for 5-HT1A Receptors. ACS Med Chem Lett 2014; 5:358-62. [PMID: 24900840 DOI: 10.1021/ml4004843] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 01/29/2014] [Indexed: 02/07/2023] Open
Abstract
An electrostatic interaction related to a favorable position of the distal phenyl ring and a phenylalanine residue in the binding pocket would explain the higher 5-HT1A affinity of a 4-phenyl-1,2,3,6-tetrahydropyridine (THP) analogue compared to the corresponding 4-phenylpiperazine analogue. To explore a possible reinforcement of this interaction to increase the affinity for 5-HT1A receptors, different 4-substituted-phenyl analogues were synthesized and tested. The most important increase of affinity is obtained with two electron-donating methyl groups in positions 3 and 5.
Collapse
Affiliation(s)
- Jean-François Liégeois
- Laboratory
of Medicinal Chemistry and C.I.R.M., University of Liège, avenue
de l′Hôpital, 1 (B36), B-4000 Liège 1, Belgium
| | - Marc Lespagnard
- Laboratory
of Medicinal Chemistry and C.I.R.M., University of Liège, avenue
de l′Hôpital, 1 (B36), B-4000 Liège 1, Belgium
| | - Elsa Meneses Salas
- Laboratory
of Medicinal Chemistry and C.I.R.M., University of Liège, avenue
de l′Hôpital, 1 (B36), B-4000 Liège 1, Belgium
| | - Floriane Mangin
- Laboratory
of Medicinal Chemistry and C.I.R.M., University of Liège, avenue
de l′Hôpital, 1 (B36), B-4000 Liège 1, Belgium
| | - Jacqueline Scuvée-Moreau
- Laboratory
of Pharmacology and GIGA-Neuroscience, University of Liège, avenue
de l′Hôpital, 1 (B36), B-4000 Liège 1, Belgium
| | - Sébastien Dilly
- Laboratory
of Medicinal Chemistry and C.I.R.M., University of Liège, avenue
de l′Hôpital, 1 (B36), B-4000 Liège 1, Belgium
- Laboratory
of Pharmacology and GIGA-Neuroscience, University of Liège, avenue
de l′Hôpital, 1 (B36), B-4000 Liège 1, Belgium
| |
Collapse
|
8
|
Kowalski P, Mitka K, Jaśkowska J, Duszyńska B, Bojarski AJ. New arylpiperazines with flexible versus partly constrained linker as serotonin 5-HT(1A)/5-HT(7) receptor ligands. Arch Pharm (Weinheim) 2013; 346:339-48. [PMID: 23609855 DOI: 10.1002/ardp.201300011] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 01/08/2013] [Accepted: 03/18/2013] [Indexed: 11/09/2022]
Abstract
A series of new long-chain arylpiperazine (LCAP) derivatives with flexible and partly constrained alkyl linker were synthesized and investigated in vitro as potential serotonin 5-HT(1A) and 5-HT(7) receptor ligands. The compounds were prepared by a two-step procedure using naphthalimide and 2H-1,3-benzoxazine-2,4(3H)-dione as imides, and 1-(2-methoxyphenyl)piperazine (o-OMe-PhP) and 1,2,3,4-tetrahydroisoquinoline (THIQ) as amine pharmacophores. Modifications of the spacer structure included introduction of flexible penta- and hexamethylene chains as well as partly constrained m- and p-xylyl moieties. In general, the new compounds were more active at the 5-HT(1A) than at the 5-HT(7) receptor, and the o-OMe-PhP derivatives displayed higher affinities than their respective THIQ analogs. The spacer modifications had little effect on the observed in vitro activities. Within the o-OMe-PhP series, except for a small binding reduction for ligands containing the m-xylyl moiety, there was no substantial change in the compounds' potency at both receptors, while for the THIQ derivatives a clear structure-activity relationship was visible only for the interaction of the compounds with the 5-HT(7) receptor, which strongly favored flexible analogs.
Collapse
Affiliation(s)
- Piotr Kowalski
- Cracow University of Technology, Institute of Organic Chemistry and Technology, Kraków, Poland.
| | | | | | | | | |
Collapse
|
9
|
Di Santo R, Costi R, Cuzzucoli Crucitti G, Pescatori L, Rosi F, Scipione L, Celona D, Vertechy M, Ghirardi O, Piovesan P, Marzi M, Caccia S, Guiso G, Giorgi F, Minetti P. Design, Synthesis, and Structure–Activity Relationship of N-Arylnaphthylamine Derivatives as Amyloid Aggregation Inhibitors. J Med Chem 2012; 55:8538-48. [DOI: 10.1021/jm301105m] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roberto Di Santo
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur—Fondazione
Cenci Bolognetti, “Sapienza” Università di Roma, P.le A. Moro 5, I-00185 Roma, Italy
| | - Roberta Costi
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur—Fondazione
Cenci Bolognetti, “Sapienza” Università di Roma, P.le A. Moro 5, I-00185 Roma, Italy
| | - Giuliana Cuzzucoli Crucitti
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur—Fondazione
Cenci Bolognetti, “Sapienza” Università di Roma, P.le A. Moro 5, I-00185 Roma, Italy
| | - Luca Pescatori
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur—Fondazione
Cenci Bolognetti, “Sapienza” Università di Roma, P.le A. Moro 5, I-00185 Roma, Italy
| | - Federica Rosi
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur—Fondazione
Cenci Bolognetti, “Sapienza” Università di Roma, P.le A. Moro 5, I-00185 Roma, Italy
| | - Luigi Scipione
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur—Fondazione
Cenci Bolognetti, “Sapienza” Università di Roma, P.le A. Moro 5, I-00185 Roma, Italy
| | - Diana Celona
- Sigma-Tau S.p.A., Via Pontina, Km 30.400, I-00040 Pomezia, Italy
| | - Mario Vertechy
- Sigma-Tau S.p.A., Via Pontina, Km 30.400, I-00040 Pomezia, Italy
| | - Orlando Ghirardi
- Sigma-Tau S.p.A., Via Pontina, Km 30.400, I-00040 Pomezia, Italy
| | - Paola Piovesan
- Sigma-Tau S.p.A., Via Pontina, Km 30.400, I-00040 Pomezia, Italy
| | - Mauro Marzi
- Sigma-Tau S.p.A., Via Pontina, Km 30.400, I-00040 Pomezia, Italy
| | - Silvio Caccia
- Dipartimento di Neuroscienze, Istituto di Ricerche Farmacologiche “Mario Negri”, Via La Masa, 19, I-20156 Milano, Italy
| | - Giovanna Guiso
- Dipartimento di Neuroscienze, Istituto di Ricerche Farmacologiche “Mario Negri”, Via La Masa, 19, I-20156 Milano, Italy
| | - Fabrizio Giorgi
- Sigma-Tau S.p.A., Via Pontina, Km 30.400, I-00040 Pomezia, Italy
| | - Patrizia Minetti
- Sigma-Tau S.p.A., Via Pontina, Km 30.400, I-00040 Pomezia, Italy
| |
Collapse
|
10
|
Pockros LA, Pentkowski NS, Conway SM, Ullman TE, Zwick KR, Neisewander JL. 5-HT(2A) receptor blockade and 5-HT(2C) receptor activation interact to reduce cocaine hyperlocomotion and Fos protein expression in the caudate-putamen. Synapse 2012; 66:989-1001. [PMID: 22886755 DOI: 10.1002/syn.21592] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 08/02/2012] [Accepted: 08/07/2012] [Indexed: 12/25/2022]
Abstract
Both the 5-HT(2A) receptor (R) antagonist M100907 and the 5-HT(2C) R agonist MK212 attenuate cocaine-induced dopamine release and hyperlocomotion. This study examined whether these drugs interact to reduce cocaine hyperlocomotion and Fos expression in the striatum and prefrontal cortex. We first determined from dose-effect functions a low dose of both M100907 and MK212 that failed to alter cocaine (15 mg/kg, i.p.) hyperlocomotion. Subsequently, we examined whether these subthreshold doses given together would attenuate cocaine hyperlocomotion, consistent with a 5-HT(2A)/5-HT(2C) R interaction. Separate groups of rats received two sequential drug injections 5 min apart immediately before a 1-h locomotion test as follows: (1) saline + saline, (2) saline + cocaine, (3) 0.025 mg/kg M100907 + cocaine, (4) 0.125 mg/kg MK212 + cocaine, or (5) cocktail combination of 0.025 mg/kg M100907 and 0.125 mg/kg MK212 + cocaine. Brains were extracted for Fos immunohistochemistry 90 min after the second injection. We next examined the effects of 0.025 mg/kg M100907 and 0.125 mg/kg MK212, alone and in combination, on spontaneous locomotor activity. While neither drug given alone produced any effects, the M100907/MK212 cocktail attenuated cocaine hyperlocomotion as well as cocaine-induced Fos expression in the dorsolateral caudate-putamen (CPu), but had no effect on spontaneous locomotion. The findings suggest that 5-HT(2A) Rs and 5-HT(2C) Rs interact to attenuate cocaine hyperlocomotion and Fos expression in the CPu, and that the CPu is a potential locus of the interactive effects between these 5-HT(2) R subtypes on behavior. Further research investigating combined 5-HT(2A) R antagonism and 5-HT(2C) R agonism as a treatment for cocaine dependence is warranted.
Collapse
Affiliation(s)
- Lara A Pockros
- Department of Psychology, Arizona State University, 950 S. McAllister, Tempe, Arizona 85287-1104, USA
| | | | | | | | | | | |
Collapse
|
11
|
Gao R, Canney DJ. A versatile and practical microwave-assisted synthesis of sterically hindered N-arylpiperazines. J Org Chem 2011; 75:7451-3. [PMID: 20863109 DOI: 10.1021/jo101478c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A wide-ranging and practical synthesis of structurally diverse, sterically hindered N-arylpiperazines from 2,2'-(4-nitrophenylsulfonylazanediyl) bis(ethane-2,1-diyl) bis(4-nitrobenzenesulfonate) and substituted anilines has been achieved using microwave irradiation in acetonitrile followed by deprotection with PhSH.
Collapse
Affiliation(s)
- Rong Gao
- Temple University School of Pharmacy, Department of Pharmaceutical Sciences, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, USA
| | | |
Collapse
|
12
|
Ismaiel AM, Gad LM, Ghareib SA, Bamanie FH, Moustafa MA. Synthesis of piperazino and morpholino derivatives of aryloxypropane with potential analgesic and possible antimigraine activities. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9316-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
13
|
|
14
|
Bueno AB, Flynn CJ, Gilmore J, Marcos A, Montero C, Porter W, Williams AC. A versatile protocol for the preparation of substituted 1- and 2-naphthyl piperazines from aminonaphthols. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.09.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
15
|
Dukat M, Smith C, Herrick-Davis K, Teitler M, Glennon RA. Binding of tryptamine analogs at h5-HT1E receptors: a structure–affinity investigation. Bioorg Med Chem 2004; 12:2545-52. [PMID: 15110837 DOI: 10.1016/j.bmc.2004.03.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2004] [Revised: 03/02/2004] [Accepted: 03/14/2004] [Indexed: 11/30/2022]
Abstract
Structure-affinity requirements for the binding of serotonin (5-HT) analogs at human 5-HT1E receptors were investigated by examining the affinities of >40 tryptamine-related compounds. No tryptamine analog was found to bind with substantially higher affinity than 5-HT. The results indicate that hydrogen bonding plays a key role in the 5-HT1E/receptor interaction. This finding was supported using quantitative structure-activity analysis (QSAR) techniques such as comparative molecular field analysis (CoMFA) and the program QsarIS.
Collapse
Affiliation(s)
- Małgorzata Dukat
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | | | | | | | | |
Collapse
|
16
|
Bojarski AJ, Mokrosz MJ, Duszyńska B, Kozioł A, Bugno R. New imide 5-HT1A receptor ligands - modification of terminal fragment geometry. Molecules 2004; 9:170-7. [PMID: 18007421 DOI: 10.3390/90300170] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2004] [Accepted: 01/19/2004] [Indexed: 11/16/2022] Open
Abstract
Two sets of new o-methoxyphenylpiperazine (MPP; series a) and 1,2,3,4-tetrahydroisoquinoline (THIQ; series b) derivatives, containing various imide moieties derived from NAN190, were synthesized and evaluated in vitro for their ability to bind to the serotonin 5-HT(1A) and 5-HT(2A) receptors. All new derivatives from series a demonstrated high 5-HT(1A) affinities, whereas THIQ analogues were much less active. With respect to 5-HT(2A) receptors, three MPP derivatives presented moderate activity but the rest of the investigated compounds were practically inactive. The influence of changes in terminus geometry on 5-HT(1A) receptor affinity was analyzed in regard to model compounds NAN190and MM199.
Collapse
Affiliation(s)
- Andrzej J Bojarski
- Department of Medicinal Chemistry, Institute of Pharmacology of the Polish Academy of Sciences, 12 Smetna Street, 31-343 Kraków, Poland.
| | | | | | | | | |
Collapse
|
17
|
Herold F, Kleps J, Wolska I, Nowak G. Synthesis of new hexahydro- and octahydropyrido[1,2-c]pyrimidine derivatives with an arylpiperazine moiety as ligands for 5-HT1A and 5-HT2A receptors. FARMACO (SOCIETA CHIMICA ITALIANA : 1989) 2002; 57:959-71. [PMID: 12564469 DOI: 10.1016/s0014-827x(02)01274-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Synthesis applied to prepare compounds 5-15 and 17-22 discussed in this paper has been presented in Scheme 1. Multi-stage preparation techniques were used to obtain 4-aryl-hexahydro 1-4 and (R,R) and (S,S) 4-aryl-octahydropyrido[1,2-c]pyrimidine-1,3-dione (16) derivatives, being the starting compounds for further modification. N-Alkylation of the imide group in compounds 1-4 and 16 followed, using 1,4-dibromobutane to yield monobromobutyl derivatives 5-8 and 17. Subsequent condensation of those compounds with appropriate 1-aryl or 1-heteroarylpiperazine led to the final hexahydro- 9-15 and octahydro- 18-22 pyrido[1,2-c]pyrimidine-1,3-dione derivatives. The final products were subjected to screening test to elucidate the affinity to 5-HT1A and 5-HT2A receptors.
Collapse
Affiliation(s)
- Franciszek Herold
- Department of Drug Technology, Faculty of Pharmacy, The Medical University of Warsaw, Banacha 1, 02-970 Warsaw, Poland
| | | | | | | |
Collapse
|
18
|
Salvatore RN, Schmidt SE, Shin SI, Nagle AS, Worrell JH, Jung KW. CsOH-promoted chemoselective mono-N-alkylation of diamines and polyamines. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)01747-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
19
|
Abou-Gharbia MA, Childers WE, Fletcher H, McGaughey G, Patel U, Webb MB, Yardley J, Andree T, Boast C, Kucharik RJ, Marquis K, Morris H, Scerni R, Moyer JA. Synthesis and SAR of adatanserin: novel adamantyl aryl- and heteroarylpiperazines with dual serotonin 5-HT(1A) and 5-HT(2) activity as potential anxiolytic and antidepressant agents. J Med Chem 1999; 42:5077-94. [PMID: 10602693 DOI: 10.1021/jm9806704] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Several novel functionalized adamantyl aryl- and heteroarylpiperazine derivatives were prepared and examined in various receptor binding and behavioral tests to determine their serotonin receptor activities. Many compounds demonstrated modest to high affinity for 5-HT(1A) receptors, with compounds 9, 13, 23, 33, 34, and 43 being the most potent at this site. Compound 1, 2-[4-(2-pyrimidinyl)-1-piperazinyl]ethyl adamantyl-1-carboxylate, demonstrated relatively high affinity for 5-HT(1A) receptors (K(i) = 8 nM) and acceptable selectivity versus D(2) receptors (K(i) = 708 mM); however, it lacked in vivo activity in serotonergic behavioral models. In contrast, compounds 9 (WY-50,324, SEB-324, adatanserin), adamantyl-1-carboxylic acid 2-[4-(2-pyrimidinyl)-1-piperazinyl]ethylamide, and 13, adamantyl-1-carboxylic acid 2-[4-(2-methoxyphenyl)-1-piperazinyl]ethylamide, demonstrated high affinity for 5-HT(1A) binding sites (K(i) = 1 nM for both) and moderate affinity for 5-HT(2) receptors (K(i) = 73 and 75 nM, respectively). Both compounds also demonstrated partial 5-HT(1A) agonist activity in vivo in rat serotonin syndrome and 5-HT(2) antagonist activity in quipazine- and DOI-induced head shake paradigms. The selective 5-HT(1A) partial agonist and 5-HT(2) antagonist activity of 9 was accompanied by significant anxiolytic activity in an animal conflict model. On the basis of this profile, compound 9 entered development as a combined anxiolytic and antidepressant agent.
Collapse
Affiliation(s)
- M A Abou-Gharbia
- Chemical Sciences and CNS Disorders, Wyeth-Ayerst Research, CN 8000, Princeton, New Jersey 08543-8000, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Olivier B, Soudijn W, van Wijngaarden I. The 5-HT1A receptor and its ligands: structure and function. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 1999; 52:103-65. [PMID: 10396127 DOI: 10.1007/978-3-0348-8730-4_3] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
An overview is presented on progress made in research on 5-HT1A receptors and their ligands since their discovery in 1983. Molecular biology has offered new tools, for example cloned 5-HT1A receptors, their mutants and chimeras to study structure and function. Many compounds, belonging to different chemical classes, display high affinity and selectivity for 5-HT1A receptors. The majority of these compounds are agonists or partial agonists, full antagonists are still scarce. Agonists and partial agonists are active in various animal models of anxiety and depression. Partial receptor agonists have been proven to be effective in general anxiety disorder and depression in man. Potential therapeutic applications for 5-HT1A receptor antagonists are evaluated, for example, in cognition disorders.
Collapse
Affiliation(s)
- B Olivier
- Dept. of Psychopharmacology, Faculty of Pharmacy, Utrecht University, The Netherlands
| | | | | |
Collapse
|
21
|
Upthagrove AL, Hackett M, Nelson WL. Fragmentation pathways of selectively labeled uropranolol using electrospray ionization on an ion trap mass spectrometer and comparison with ions formed by electron impact. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 1999; 13:534-541. [PMID: 10204247 DOI: 10.1002/(sici)1097-0231(19990330)13:6<534::aid-rcm520>3.0.co;2-f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Propranolol, deuterium- and 18O-labeled propranolol and related compounds were analyzed using an ion trap mass spectrometer equipped with a modified Finnigan API electrospray interface. Sequential product ion (MSn) experiments were used to elucidate fragmentation pathways for these compounds. The observed ions were compared to those observed under electron impact (EI) conditions. The electrospray ionization (ESI) ion trap spectra, as well as the EI spectra, afford useful information to allow assignments of most product ions, many of which retain portions of the aliphatic three-carbon side chain.
Collapse
Affiliation(s)
- A L Upthagrove
- Department of Medicinal Chemistry, University of Washington, Seattle 98195-7610, USA
| | | | | |
Collapse
|
22
|
Spedding M, Newman-Tancredi A, Millan MJ, Dacquet C, Michel AN, Jacoby E, Vickery B, Tallentire D. Interaction of the anxiogenic agent, RS-30199, with 5-HT1A receptors: modulation of sexual activity in the male rat. Neuropharmacology 1998; 37:769-80. [PMID: 9707291 DOI: 10.1016/s0028-3908(98)00065-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
RS-30199 has been shown previously to have atypical interactions at 5-HT1A receptors. RS-30199 and RS-64459, an analogue of buspirone with a buspirone side chain, were compared with the classic, partial agonist at 5-HT1A receptors, 8-hydroxy-2 (di-n-propylamino) tetralin (8-OH-DPAT) and buspirone. At human (h) 5-HT1A receptors in CHO cells, RS-30199-193 (racemate) and its enantiomers (-197, -198) inhibited [3H]-8-OH-DPAT binding (RS-30199-198, ki, 29.7 +/- 11.7 nM; RS-30199-197, ki, 74.1 +/- 11.7 nM) as did RS-64459 (ki, 24.9 +/- 6.0 nM), but RS-30199-197 and -198 were almost full agonists in a [35S]-GTPgammaS binding assay, whereas RS-64459 was a partial agonist, resembling buspirone and 8-OH-DPAT. RS-64459 and the enantiomers of RS-30199 had weaker affinity for 5-HT2C and 5-HT7 receptors. These compounds did not induce the 5-HT behavioural syndrome in male rats. However, in a model where naive male rats were introduced to estrogen-progesterone primed, sexually receptive female rats, RS-30199-197 (0.1, 1, 10 mg/kg, s.c.) had a profound inhibitory effect on sexual behaviour score. Neither buspirone nor 8-OH-DPAT reduced the sexual behaviour score. Unlike 8-OH-DPAT, which shortens intromission latency, RS-30199 prolonged intromission latency. RS-30199 (10 mg/kg s.c.) fully inhibited the facilitation of sexual behaviour caused by the alpha2-adrenoceptor antagonist, delequamine (0.1 mg/kg, p.o.). In contrast, RS-64459 (100, 250, 1000 and 4000 microg/kg, s.c.) failed to modify the sexual behaviour score and did not modify intromission latency. The differences between the effects of RS-30199 and RS-64459 in binding and functional experiments are supported by molecular models of the receptor-ligand interaction, where the compounds interact in different ways with the receptor; a model is proposed for the allosteric interaction of different agents with the receptor, resulting in different functional profiles. RS-30199 can be considered an atypical agonist at 5-HT1A receptors.
Collapse
Affiliation(s)
- M Spedding
- Institut de Internationales, Servier, Croissy Research Centre, Paris, France.
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Ismaiel AM, Dukat M, Law H, Kamboj R, Fan E, Lee DK, Mazzocco L, Buekschkens D, Teitler M, Pierson ME, Glennon RA. 2-(1-Naphthyloxy)ethylamines with enhanced affinity for human 5-HT1D beta (h5-HT1B) serotonin receptors. J Med Chem 1997; 40:4415-9. [PMID: 9435911 DOI: 10.1021/jm970507t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Although the beta-adrenergic antagonist propranolol (1) binds at rodent 5-HT1B serotonin receptors, it displays low affinity (Ki > 10,000 nM) for its species homologue 5-HT1D beta (i.e., h5-HT1B) receptors. The structure of propranolol was systematically modified in an attempt to enhance its affinity for the latter population of receptors. Removal of the alkyl hydroxyl group, shortening of the O-alkyl chain from three to two methylene groups, and variation of the terminal amine substituent resulted in compounds, such as N-monomethyl-2-(1-naphthyloxy)-ethylamine (11; Ki = 26 nM), that display significantly higher h5-HT1B affinity than propranolol. Compound 11 was shown to bind equally well at human 5-HT1D alpha (h5-HT1D) receptors (Ki = 34 nM) and was further demonstrated to possess h5-HT1B agonist character in an adenylate cyclase assay. It would appear that such (aryloxy)alkylamines may represent a novel class of 5-HT1D receptor agonists.
Collapse
Affiliation(s)
- A M Ismaiel
- Department of Medicinal Chemistry, School of Pharmacy, Medical College of Virginia/Virginia Commonwealth University, Richmond 23298, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
|
25
|
Cocchi M, Fanelli F, Menziani M, De Benedetti P. Conformational analysis and theoretical quantitative size and shape-affinity relationships of N4-protonated N1-arylpiperazine 5-HT1A serotoninergic ligands. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0166-1280(96)04990-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
26
|
López-Rodríguez ML, Rosado ML, Benhamú B, Morcillo MJ, Sanz AM, Orensanz L, Beneitez ME, Fuentes JA, Manzanares J. Synthesis and structure-activity relationships of a new model of arylpiperazines. 1. 2-[[4-(o-methoxyphenyl)piperazin-1-yl]methyl]-1, 3-dioxoperhydroimidazo[1,5-alpha]pyridine: a selective 5-HT1A receptor agonist. J Med Chem 1996; 39:4439-50. [PMID: 8893838 DOI: 10.1021/jm960416g] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A series of new bicyclohydantoin-arylpiperazines was prepared and evaluated for affinity at 5-HT1A, alpha 1, and D2 receptors. Most of the compounds showed very low affinity for D2 receptors, and most of them demonstrated moderate to high affinity for 5-HT1A and alpha 1 receptor binding sites. SAR observations indicated that the length of the alkyl chain between the arylpiperazine and the hydantoin moiety is of great importance for 5-HT1A/alpha 1 affinity and selectivity, n = 1 being the optimal value. Compound 1h, 2-[[4-(o-methoxyphenyl)piperazin-1-yl] methyl]-1,3-dioxoperhydroimidazo [1,5-alpha]pyridine, bound at 5-HT1A sites with nanomolar affinity (Ki = 31.7 nM) and high selectivity over alpha 1, D2, and 5-HT2A receptors (Ki > 1000, > 10 000, and > 1000 nM, respectively). Preliminary studies showed that this agent is probably functioning as a partial to full 5-HT1A agonist, and it displayed anxiolytic activity on the social interaction test in mice.
Collapse
Affiliation(s)
- M L López-Rodríguez
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense, Madrid, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
27
|
2-[4-(o-methoxyphenyl)piperazin-1-ylmethyl]-1,3-dioxoperhydroimidazo[1,5-a]pyridine as a new selective 5-HT1A receptor ligand. Bioorg Med Chem Lett 1996. [DOI: 10.1016/0960-894x(96)00081-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
28
|
Gaillard P, Carrupt PA, Testa B, Schambel P. Binding of arylpiperazines, (aryloxy)propanolamines, and tetrahydropyridylindoles to the 5-HT1A receptor: contribution of the molecular lipophilicity potential to three-dimensional quantitative structure-affinity relationship models. J Med Chem 1996; 39:126-34. [PMID: 8568799 DOI: 10.1021/jm950410b] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A set of 280 5-HT1A receptor ligands were selected from available literature data according to predefined criteria and subjected to three-dimensional quantitative structure-affinity relationship analysis using comparative molecular field analysis. No model was obtained for serotonin analogues (19 compounds) and aminotetralins (60 compounds), despite a variety of alignment hypotheses being tried. In contrast, the steric, electrostatic, and lipophilicity fields alone and in combination yielded informative models for arylpiperazines (101 training compounds and 12 test compounds), (aryloxy)propanolamines (30 training compounds and four test compounds), and tetrahydropyridylindoles (54 training compounds) taken separately (models A, B, and C). Arylpiperazines and (aryloxy)propanolamines were then combined successfully to yield reasonably good models for 131 compounds (model D). In a last step, the three chemical classes (185 compounds) were combined, again successfully (model E). This stepwise procedure not only ascertains self-consistency in alignments but it also allows statistical signals (i.e., favorable or unfavorable regions around molecules) to emerge which cannot exist in a single chemical class. The models so obtained reveal a number of interaction sites between ligands and the 5-HT1A receptor, and extend the information gathered from a model based on homology modeling.
Collapse
Affiliation(s)
- P Gaillard
- Institut de Chimie Thérapeutique, Section de Pharmacie, Université de Lausanne, BEP, Switzerland
| | | | | | | |
Collapse
|
29
|
Hillver SE, Björk L, Höök BB, Cortizo L, Nordvall G, Johansson AM, Ertan A, Csöregh I, Johansson L, Lewander T, Hacksell U. Synthesis and pharmacology of the enantiomers of UH301: opposing interactions with 5-HT1A receptors. Chirality 1996; 8:531-44. [PMID: 9025253 DOI: 10.1002/(sici)1520-636x(1996)8:8<531::aid-chir1>3.0.co;2-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The (S)-enantiomer of 5-fluoro-8-hydroxy-2-(dipropylamino) tetralin [(S)-2a; (S)-UH301] was the first reported 5-HT1A receptor antagonist. We now give a full account on the synthetic effort leading to the preparation of the racemate and the enantiomers of 2a. The crystal and molecular structure of 2a. HBr has been determined by X-ray diffraction and the absolute configuration has been deduced using statistical tests of the crystallographic R values. The unit cell is tetragonal (P4(1)2(1)2) with a = b = 13.2235(2), c = 39.560(1) A and contains two crystallographically independent molecules in each asymmetric unit. The two solid state conformers differ in the conformation of the N-propyl groups. The pharmacological characterization of the enantiomers was done by use of in vivo biochemical and behavioural assays in rats. The (R)-enantiomer of 2a is a 5-HT1A receptor agonist of low potency while (S)-2a does not exhibit any agonist properties at 5-HT1A receptors. As a consequence of the opposing effects of the enantiomers, the racemate, rac-2a, does not produce any clear-cut effects in rats. The reduced efficacy of (S)-2a as compared to the well known 5-HT1A receptor agonist 8-hydroxy-2-(dipropylamino) tetralin (1;8-OH-DPAT) may be due to the fluoro-substituent induced negative potential of the aromatic ring.
Collapse
Affiliation(s)
- S E Hillver
- Department of Organic Pharmaceutical Chemistry, Uppsala Biomedical Centre, Uppsala University, Sweden
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Mokrosz JL, Paluchowska MH, Klodzińska A, Charakchieva-Minol S, Chojnacka-Wójcik E. Structure-Activity Relationship Studies of CNS Agents, Part 26 4-[2-(Cycloalkanecarboxamido)ethyl]-1-(2-methoxyphenyl)-piperazines: High-Affinity 5-HT1A Agonists. Arch Pharm (Weinheim) 1995. [DOI: 10.1002/ardp.19953281108] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
31
|
Fluorescent probes for 5-HT1A receptors: Synthesis and characterization of 5-methoxy-3-[n-propyl(4-n-aminobutyl)] amino-3,4-dihydro-2H-1-benzopyran derivatives. Bioorg Med Chem Lett 1993. [DOI: 10.1016/s0960-894x(01)80990-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
32
|
|
33
|
Nelson DL. Structure-activity relationships at 5-HT1A receptors: binding profiles and intrinsic activity. Pharmacol Biochem Behav 1991; 40:1041-51. [PMID: 1816558 DOI: 10.1016/0091-3057(91)90124-k] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The 5-HT1A receptor has been one of the most studied 5-HT receptor subtypes in terms of its pharmacologic profile. Comparisons of various studies of structure-activity relationships (SAR) at this receptor shows an emerging profile for this receptor's pharmacophore. The present discussion focuses on the findings generated with relatively small molecules that can be considered as analogs of serotonin itself and that illustrate some of the structural properties that are important for high-affinity recognition by the receptor. Most of the SAR work has been based on the affinities of compounds for the receptor as determined by the radioligand-binding technique, which has a significant limitation in that it cannot define the intrinsic activity of compounds at the receptor. This problem can be addressed by functional assays, and an example of SAR at the 5-HT1A receptor-coupled adenylate cyclase system is provided.
Collapse
Affiliation(s)
- D L Nelson
- Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN 46285
| |
Collapse
|
34
|
Glennon RA, Ismaiel AM, Chaurasia C, Titeler M. 5-HT1D serotonin receptors: Results of a structure-affinity investigation. Drug Dev Res 1991. [DOI: 10.1002/ddr.430220103] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|