1
|
Novakov IA, Sheikin DS, Navrotskii MB, Mkrtchyan AS, Brunilina LL, Balakin KV. Dexoxadrol and its bioisosteres: structure, synthesis, and pharmacological activity. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2946-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
2
|
Del Bello F, Bonifazi A, Giorgioni G, Petrelli R, Quaglia W, Altomare A, Falcicchio A, Matucci R, Vistoli G, Piergentili A. Novel muscarinic acetylcholine receptor hybrid ligands embedding quinuclidine and 1,4-dioxane fragments. Eur J Med Chem 2017; 137:327-337. [DOI: 10.1016/j.ejmech.2017.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 05/24/2017] [Accepted: 06/02/2017] [Indexed: 12/18/2022]
|
3
|
Hack V, Reuter C, Opitz R, Schmieder P, Beyermann M, Neudörfl JM, Kühne R, Schmalz HG. Efficient α-Helix Induction in a Linear Peptide Chain byN-Capping with a Bridged-tricyclic Diproline Analogue. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
4
|
Hack V, Reuter C, Opitz R, Schmieder P, Beyermann M, Neudörfl JM, Kühne R, Schmalz HG. Efficient α-Helix Induction in a Linear Peptide Chain byN-Capping with a Bridged-tricyclic Diproline Analogue. Angew Chem Int Ed Engl 2013; 52:9539-43. [DOI: 10.1002/anie.201302014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Revised: 04/11/2013] [Indexed: 11/11/2022]
|
5
|
Reuter C, Huy P, Neudörfl JM, Kühne R, Schmalz HG. Exercises in Pyrrolidine Chemistry: Gram Scale Synthesis of a Pro-Pro Dipeptide Mimetic with a Polyproline Type II Helix Conformation. Chemistry 2011; 17:12037-44. [DOI: 10.1002/chem.201101704] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Indexed: 01/29/2023]
|
6
|
Scapecchi S, Nesi M, Matucci R, Bellucci C, Buccioni M, Dei S, Guandalini L, Manetti D, Martelli C, Martini E, Marucci G, Orlandi F, Romanelli MN, Teodori E, Cirilli R. Synthesis, affinity profile and functional activity of potent chiral muscarinic antagonists with a pyrrolidinylfuran structure. J Med Chem 2010; 53:201-7. [PMID: 19928767 DOI: 10.1021/jm901048j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Starting from the structure of previously studied muscarinic agonists, characterized by a pyrrolidinylfuran scaffold, a new series of muscarinic antagonists was synthesized by substituting the 5-position of the furane cycle with bulky hydrophobic groups. Both tertiary amines and the corresponding iodomethyl derivatives were obtained and studied. All the new compounds show high affinity toward cloned human muscarinic M(1)-M(5) receptors expressed in Chinese hamster ovary (CHO) cells and behave as competitive antagonists on classical models of muscarinic receptors. The diastereoisomeric mixture of the highest affinity compound of the series was resolved into the four optical isomers by chiral HPLC. The relative and absolute configuration of the obtained compounds was established by means of a combined strategy based on X-ray crystallography and chiroptical techniques. Although generally fairly potent, the compounds showed only modest subtype selectivity, with the exception of 2a and 6a, which in functional assays presented clear-cut selectivity for the muscarinic receptors present in rabbit vas deferens.
Collapse
Affiliation(s)
- Serena Scapecchi
- Dipartimento di Scienze Farmaceutiche, Universita di Firenze, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Aguado A, Boulos J, Carreras A, Montoya A, Rodriquez J. Synthesis of furanyl and oxazolyl N-substituted piperidine and imidazoline salts as potential agonists of M1 muscarinic receptors. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.5570440644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
8
|
Rodríguez D, Picó A, Moyano A. A highly stereocontrolled route to 2-(2′-oxiranyl)piperidines and pyrrolidines: enantioselective synthesis of (+)-α-conhydrine. Tetrahedron Lett 2008; 49:6866-9. [DOI: 10.1016/j.tetlet.2008.09.095] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
9
|
Dei S, Bellucci C, Buccioni M, Ferraroni M, Guandalini L, Manetti D, Marucci G, Matucci R, Nesi M, Romanelli MN, Scapecchi S, Teodori E. Muscarinic antagonists with multiple stereocenters: Synthesis, affinity profile and functional activity of isomeric 1-methyl-2-(2,2-alkylaryl-1,3-oxathiolan-5-yl)pyrrolidine sulfoxide derivatives. Bioorg Med Chem 2008; 16:5490-500. [PMID: 18455407 DOI: 10.1016/j.bmc.2008.04.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Revised: 04/02/2008] [Accepted: 04/08/2008] [Indexed: 11/29/2022]
Abstract
Completing a long-lasting research on 1,3-oxathiolane muscarinic ligands, we have synthesized a set of isomeric 1-methyl-2-(2,2-alkylaryl-1,3-oxathiolan-5-yl)pyrrolidine 3-sulfoxide derivatives, containing three or four stereogenic centers. In general the compounds are very potent antagonists even if, unlike the corresponding agonists, they show modest subtype selectivity.
Collapse
Affiliation(s)
- Silvia Dei
- Laboratorio di Progettazione, Sintesi e Studio di Eterocicli Biologicamente Attivi (HeteroBioLab), Dipartimento di Scienze Farmaceutiche, Università di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino (FI), Italy.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Abstract
The compound 3-oxo-1,3-oxathiolane (6) and its cis - and trans - 2-methyl (7,8), 4-methyl (9,10), 5-methyl (11,12) and 2-p-nitrophenyl (13,14) derivatives were prepared by oxidizing the corresponding 1,3-oxathiolanes (1-5) with NaIO4 in water. The oxides were purified and their isomers separated using thin layer chromatography. The structural characterization was carried out with 1H NMR spectroscopy and molecular modeling. Compounds 8-10, 12, and 14 attain the half-chair type conformation with O1 above and C5 below the plane (HC1), but 6, 7, 11, and 13 are, for steric reasons, the mixtures with the alternative half-chair (HC2), where O1 is below and C5 above this plane. Accordingly, 6 appears based on the values of experimental coupling constants as an 81:19, 7 as a 37:63, 11 as a 33:67 and 13 as a 54:46 mixture of HC1 and HC2, respectively. The relative energies of these conformations, the values of the vicinal H,H-coupling constants and 1H chemical shifts were estimated for compounds 6-12 also by computational methods and they support nicely the conclusions based on experimental data.
Collapse
Affiliation(s)
- Kalevi Pihlaja
- Department of Chemistry, University of Turku, FI-20014 Turku, Finland.
| | | | | |
Collapse
|
11
|
Zhu L, Yang LM, Cui YY, Zheng PL, Niu YY, Wang H, Lu Y, Ren QS, Wei PJ, Chen HZ. Stereoselectivity of satropane, a novel tropane analog, on iris muscarinic receptor activation and intraocular hypotension. Acta Pharmacol Sin 2008; 29:177-84. [PMID: 18215346 DOI: 10.1111/j.1745-7254.2008.00722.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
AIM To study the stereoselectivity of satropane (3-paramethylbenzene sulfonyloxy-6-acetoxy tropane), a novel tropane analog, on iris muscarinic receptor activation and intraocular hypotension. METHODS The assays for radioligand-receptor binding, the contractile responses of isolated iris muscle, the miosis response, and the intraocular hypotension of the enantiomers of satropane were investigated. RESULTS In the binding analysis, S(-)satropane (lesatropane) completely competed against the [3H]quinuclydinyl benzilate-labeled ligand at muscarinic receptors in the iris muscle, whereas R(+)satropane failed to completely compete. In an isolated iris contractile assay, R,S(+/-)satropane and S(-)satropane produced a concentration-dependent contractile response with similar efficacy and potency to that of carbachol. R(+)satropane did not induce any contractile response. In the pupil diameter measurement assay in vivo, S(-)satropane induced miosis much more effectively than pilocarpine, while R(+)satropane failed to produce any miosis. In the water loading-induced and methylcellulose-induced ocular hypertensive models, S(-)satropane, but not R(+)satropane, significantly suppressed intraocular pressure at a much lower concentration than pilocarpine. CONCLUSION The agonistic and hypotensive properties of satropane on rabbit eyes are stereoselective, with the S(-)isomer being its active form.
Collapse
Affiliation(s)
- Liang Zhu
- Department of Pharmacy, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Piergentili A, Quaglia W, Giannella M, Del Bello F, Buccioni M, Nesi M, Matucci R. Rapid novel divergent synthesis and muscarinic agonist profile of all four optical isomers of N,N,N-trimethyl(6-methyl-1,4-dioxan-2-yl)methanaminium iodide. Bioorg Med Chem Lett 2008; 18:614-8. [DOI: 10.1016/j.bmcl.2007.11.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Revised: 11/19/2007] [Accepted: 11/19/2007] [Indexed: 01/22/2023]
|
13
|
Dei S, Bellucci C, Buccioni M, Ferraroni M, Guandalini L, Manetti D, Martini E, Marucci G, Matucci R, Nesi M, Romanelli MN, Scapecchi S, Teodori E. Synthesis, Affinity Profile, and Functional Activity of Muscarinic Antagonists with a 1-Methyl-2-(2,2-alkylaryl-1,3-oxathiolan-5-yl)pyrrolidine Structure. J Med Chem 2007; 50:1409-13. [PMID: 17305327 DOI: 10.1021/jm061374r] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Starting from a previously studied muscarinic ligand, characterized by a 1,3-oxathiolane nucleus, a new series of muscarinic antagonists were designed by increasing the stereochemical complexity of the molecules. A small library of enantiomeric and diastereomeric 2,2-diphenyl- and 2-cyclohexyl-2-phenyl substituted compounds was thus obtained. All the tested compounds show a high affinity toward cloned human muscarinic hm1-hm5 receptors expressed in CHO cells and a good antagonistic activity on functional assays, with a modest selectivity on rabbit vas deferens.
Collapse
Affiliation(s)
- Silvia Dei
- Dipartimento di Scienze Farmaceutiche, Università di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino (FI), Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Kiesewetter DO, Jagoda EM, Shimoji K, Ma Y, Eckelman WC. Evaluation of [18F]fluoroxanomeline {5-{4-[(6-[18F]fluorohexyl)oxy]-1,2,5-thiadiazol-3-yl}-1-methyl-1,2,3,6-tetrahydropyridine} in muscarinic knockout mice. Nucl Med Biol 2007; 34:141-52. [PMID: 17307122 DOI: 10.1016/j.nucmedbio.2006.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2006] [Revised: 11/17/2006] [Accepted: 11/25/2006] [Indexed: 11/25/2022]
Abstract
INTRODUCTION We set out to develop a muscarinic M1-selective agonist (based on the structure of the functionally M1-selective xanomeline) that could be radiolabeled with fluorine-18 for use as an imaging agent for positron emission tomography. METHODS The radiochemical synthesis was achieved, employing the arts of organic and radiochemical syntheses. Binding selectivity studies employed biodistribution studies, using autoradiography and/or tissue dissection, in wild-type or muscarinic receptor knockout mice. RESULTS [(18)F]Fluoroxanomeline shows rather uniform uptake in all mouse brain regions and high specific binding, with a brain-to-blood ratio of 32 at 60 min postinjection. In addition, the specific binding is demonstrated by a 58% to 75% decrease in brain uptake upon coinjection with 5 nmol of unlabeled fluoroxanomeline or xanomeline. Brain uptake studies with [(3)H]xanomeline in muscarinic knockout mice show decreased uptake in M1 (17-34%) and M2 (2-20%) knockout mice compared with control. However, statistical significance was observed in only a few regions. Comparison of [(18)F]fluoroxanomeline in knockout mice showed no difference in M1 or M4 knockout mice but a general decrease in M2 (2-24%) knockout mice. The decrease of [(18)F]fluoroxanomeline uptake in M2 knockout mice reached statistical significance in brain stem, cerebellum, frontal cortex, hippocampus, inferior colliculus and superior colliculus. CONCLUSION Although xanomeline displays highly selective M1 agonist activity in functional assays, little selectivity for muscarinic subtype binding was observed for xanomeline or its fluorine-containing analogue, fluoroxanomeline. This emphasizes the lack of correlation between functional selectivity and binding selectivity.
Collapse
Affiliation(s)
- Dale O Kiesewetter
- Positron Emission Tomography Radiochemistry Group, NIBIB, NIH, Bethesda, MD 20892, USA.
| | | | | | | | | |
Collapse
|