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Bolchi C, Bavo F, Appiani R, Roda G, Pallavicini M. 1,4-Benzodioxane, an evergreen, versatile scaffold in medicinal chemistry: A review of its recent applications in drug design. Eur J Med Chem 2020; 200:112419. [PMID: 32502862 DOI: 10.1016/j.ejmech.2020.112419] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/14/2020] [Accepted: 05/02/2020] [Indexed: 12/11/2022]
Abstract
1,4-Benzodioxane has long been a versatile template widely employed to design molecules endowed with diverse bioactivities. Its use spans the last decades of medicinal chemistry until today concerning many strategies of drug discovery, not excluding the most advanced ones. Here, more than fifty benzodioxane-related lead compounds, selected from recent literature, are presented showing the different approaches with which they have been developed. Agonists and antagonists at neuronal nicotinic, α1 adrenergic and serotoninergic receptor subtypes and antitumor and antibacterial agents form the most representative classes, but a variety of other biological targets are addressed by benzodioxane-containing compounds.
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Affiliation(s)
- Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy
| | - Francesco Bavo
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy
| | - Rebecca Appiani
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy
| | - Gabriella Roda
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy.
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Straniero V, Casiraghi A, Fumagalli L, Valoti E. How do reaction conditions affect the enantiopure synthesis of 2-substituted-1,4-benzodioxane derivatives? Chirality 2018; 30:943-950. [PMID: 29752740 DOI: 10.1002/chir.22968] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/13/2018] [Accepted: 03/28/2018] [Indexed: 01/31/2023]
Abstract
Several biologically active compounds structurally include the enantiopure 2-substituted-1,4-benzodioxane scaffold. The straightforward racemization that affects reactions involving most of the common chemical reactives is thus a crucial issue. The developing of a completely stereo-controlled synthetic route that does not affect the enantiomeric excess is consequently mandatory. It is also important to set up a reliable chiral HPLC method, able to follow the reaction, and to improve the synthetic performances. Here, we report the chiral investigation of two different synthons, we specifically evaluated the synthetic pathways that could be run in order to afford them, avoiding the racemization processes, which could normally occur in basic conditions. In addition, we developed peculiar chiral HPLC methods in order to resolve the enantiomers, define the enantiomeric excess, and fully characterize these compounds.
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Affiliation(s)
- Valentina Straniero
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milan, Italy
| | - Andrea Casiraghi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milan, Italy
| | - Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milan, Italy
| | - Ermanno Valoti
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milan, Italy
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Bolchi C, Bavo F, Pallavicini M. Preparation and unequivocal identification of the regioisomers of nitrocatechol monobenzyl ether. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1334919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Francesco Bavo
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
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Guo D, Li J, Lin H, Zhou Y, Chen Y, Zhao F, Sun H, Zhang D, Li H, Shoichet BK, Shan L, Zhang W, Xie X, Jiang H, Liu H. Design, Synthesis, and Biological Evaluation of Novel Tetrahydroprotoberberine Derivatives (THPBs) as Selective α 1A-Adrenoceptor Antagonists. J Med Chem 2016; 59:9489-9502. [PMID: 27709945 DOI: 10.1021/acs.jmedchem.6b01217] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel series of tetrahydroprotoberberine derivatives (THPBs) were designed, synthesized, and evaluated as selective α1A-adrenergic receptors (AR) antagonists for the treatment of benign prostatic hyperplasia. On the basis of the pharmacophore model of the marketed drug silodosin, THPBs were modified by introducing an indole segment into their core scaffolds. In calcium assays, 7 out of 32 compounds displayed excellent antagonistic activities against α1A-ARs, with IC50 less than 250 nM. Among them, compound (S)-27 had the most potent biological activity; its IC50 toward α1A-AR was 12.8 ± 2.2 nM, which is 781 and 20 times more selective than that toward α1B- and α1D-AR, respectively. In the functional assay using isolated rat tissues, compound (S)-27 inhibited norepinephrine-induced urethra smooth muscle contraction potently (IC50 = 0.5 ± 0.3 nM), without inhibiting the aortic contraction (IC50 > 1000 nM), displaying a better tissue selectivity than the marketed drug silodosin. Additional results of preliminary safety studies (acute toxicity and hERG inhibition) and pharmacokinetics studies indicated the potential druggability for compound (S)-27 which is a promising lead for the development of selective α1A-AR antagonists for the treatment of BPH.
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Affiliation(s)
- Diliang Guo
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Jing Li
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Henry Lin
- Department of Pharmaceutical Chemistry, University of California-San Francisco , San Francisco, California 94158, United States
| | - Yu Zhou
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Ying Chen
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Fei Zhao
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Haifeng Sun
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Dan Zhang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Honglin Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology , Shanghai 200237, China
| | - Brian K Shoichet
- Department of Pharmaceutical Chemistry, University of California-San Francisco , San Francisco, California 94158, United States.,Department of Pharmacology, University of North Carolina Chapel Hill School of Medicine , Chapel Hill, North Carolina 27516, United States
| | - Lei Shan
- Department of Natural Product Chemistry, School of Pharmacy, Second Military Medical University , 325 Guohe Road, Shanghai 200433, China
| | - Weidong Zhang
- Department of Natural Product Chemistry, School of Pharmacy, Second Military Medical University , 325 Guohe Road, Shanghai 200433, China
| | - Xin Xie
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Hualiang Jiang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
| | - Hong Liu
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
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Mishra P, Kaur S, Sharma AN, Jolly RS. Characterization of an Indole-3-Acetamide Hydrolase from Alcaligenes faecalis subsp. parafaecalis and Its Application in Efficient Preparation of Both Enantiomers of Chiral Building Block 2,3-Dihydro-1,4-Benzodioxin-2-Carboxylic Acid. PLoS One 2016; 11:e0159009. [PMID: 27391673 PMCID: PMC4938524 DOI: 10.1371/journal.pone.0159009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 06/25/2016] [Indexed: 11/19/2022] Open
Abstract
Both the enantiomers of 2,3-dihydro-1,4-benzodioxin-2-carboxylic acid are valuable chiral synthons for enantiospecific synthesis of therapeutic agents such as (S)-doxazosin mesylate, WB 4101, MKC 242, 2,3-dihydro-2-hydroxymethyl-1,4-benzodioxin, and N-[2,4-oxo-1,3-thiazolidin-3-yl]-2,3-dihydro-1,4-benzodioxin-2-carboxamide. Pharmaceutical applications require these enantiomers in optically pure form. However, currently available methods suffer from one drawback or other, such as low efficiency, uncommon and not so easily accessible chiral resolving agent and less than optimal enantiomeric purity. Our interest in finding a biocatalyst for efficient production of enantiomerically pure 2,3-dihydro-1,4-benzodioxin-2-carboxylic acid lead us to discover an amidase activity from Alcaligenes faecalis subsp. parafaecalis, which was able to kinetically resolve 2,3-dihydro-1,4-benzodioxin-2-carboxyamide with E value of >200. Thus, at about 50% conversion, (R)-2,3-dihydro-1,4-benzodioxin-2-carboxylic acid was produced in >99% e.e. The remaining amide had (S)-configuration and 99% e.e. The amide and acid were easily separated by aqueous (alkaline)-organic two phase extraction method. The same amidase was able to catalyse, albeit at much lower rate the hydrolysis of (S)-amide to (S)-acid without loss of e.e. The amidase activity was identified as indole-3-acetamide hydrolase (IaaH). IaaH is known to catalyse conversion of indole-3-acetamide (IAM) to indole-3-acetic acid (IAA), which is phytohormone of auxin class and is widespread among plants and bacteria that inhabit plant rhizosphere. IaaH exhibited high activity for 2,3-dihydro-1,4-benzodioxin-2-carboxamide, which was about 65% compared to its natural substrate, indole-3-acetamide. The natural substrate for IaaH indole-3-acetamide shared, at least in part a similar bicyclic structure with 2,3-dihydro-1,4-benzodioxin-2-carboxamide, which may account for high activity of enzyme towards this un-natural substrate. To the best of our knowledge this is the first application of IaaH in production of industrially important molecules.
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Affiliation(s)
- Pradeep Mishra
- Department of Bioorganic Chemistry, CSIR-Institute of Microbial Technology, Sector 39, Chandigarh, India
| | - Suneet Kaur
- Department of Bioorganic Chemistry, CSIR-Institute of Microbial Technology, Sector 39, Chandigarh, India
| | - Amar Nath Sharma
- Department of Bioorganic Chemistry, CSIR-Institute of Microbial Technology, Sector 39, Chandigarh, India
| | - Ravinder S. Jolly
- Department of Bioorganic Chemistry, CSIR-Institute of Microbial Technology, Sector 39, Chandigarh, India
- * E-mail:
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Colciago A, Mornati O, Ferri N, Castelnovo LF, Fumagalli L, Bolchi C, Pallavicini M, Valoti E, Negri-Cesi P. A selective alpha1D-adrenoreceptor antagonist inhibits human prostate cancer cell proliferation and motility “in vitro”. Pharmacol Res 2016; 103:215-26. [DOI: 10.1016/j.phrs.2015.11.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/26/2015] [Accepted: 11/19/2015] [Indexed: 01/09/2023]
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Manvar A, Shah A. Subtle Mitsunobu couplings under super-heating: the role of high-throughput continuous flow and microwave strategies. Org Biomol Chem 2014; 12:8112-24. [DOI: 10.1039/c4ob01432d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Fragile Mitsunobu reaction can efficiently be performed under super-heating.
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Affiliation(s)
- Atul Manvar
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin, Ireland
| | - Anamik Shah
- National Facility for Drug Discovery
- Centre of Excellence
- Saurashtra University
- Rajkot-360005, India
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Fumagalli L, Pallavicini M, Budriesi R, Bolchi C, Canovi M, Chiarini A, Chiodini G, Gobbi M, Laurino P, Micucci M, Straniero V, Valoti E. 6-methoxy-7-benzofuranoxy and 6-methoxy-7-indolyloxy analogues of 2-[2-(2,6-Dimethoxyphenoxy)ethyl]aminomethyl-1,4-benzodioxane (WB4101):1 discovery of a potent and selective α1D-adrenoceptor antagonist. J Med Chem 2013; 56:6402-12. [PMID: 23902232 DOI: 10.1021/jm400867d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Previous results have shown that replacement of one of the two o-methoxy groups at the phenoxy residue of the potent, but not subtype-selective, α1-AR antagonist (S)-WB4101 [(S)-1] by phenyl, or by ortho,meta-fused cyclohexane, or especially by ortho,meta-fused benzene preferentially elicits α1D-AR antagonist affinity. Such observations inspired the design of four new analogues of 1 bearing, in lieu of the 2,6-dimethoxyphenoxy residue, a 6-methoxy-substituted 7-benzofuranoxy or 7-indolyloxy group or, alternatively, their corresponding 2,3-dihydro form. Of these new compounds, which maintain, rigidified, the characteristic ortho heterodisubstituted phenoxy substructure of 1, the S enantiomer of the dihydrobenzofuranoxy derivative exhibited the highest α1D-AR antagonist affinity (pA2 9.58) with significant α1D/α1A and α1D/α1B selectivity. In addition, compared both to α1D-AR antagonists structurally related to 1 and to the well-known α1D-AR antagonist BMY7378, this derivative had modest 5-HT1A affinity and neutral α1-AR antagonist behavior.
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Affiliation(s)
- Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Italy
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Bolchi C, Pallavicini M, Fumagalli L, Ruggeri P, Valoti E. Diastereomeric 2-aminomethyl-1,4-benzodioxane mandelates: phase diagrams and resolution. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Fumagalli L, Pallavicini M, Budriesi R, Gobbi M, Straniero V, Zagami M, Chiodini G, Bolchi C, Chiarini A, Micucci M, Valoti E. Affinity and activity profiling of unichiral 8-substituted 1,4-benzodioxane analogues of WB4101 reveals a potent and selective α1B-adrenoceptor antagonist. Eur J Med Chem 2012; 58:184-91. [PMID: 23124215 DOI: 10.1016/j.ejmech.2012.09.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 09/27/2012] [Accepted: 09/28/2012] [Indexed: 11/28/2022]
Abstract
Unichiral 8-substituted analogues of 2-[(2-(2,6-dimethoxyphenoxy)ethyl)aminomethyl]-1,4-benzodioxane (WB4101) were synthesized and tested for binding affinity at cloned human α(1a)-, α(1b)-and α(1d)-adrenoreceptor (α(1a)-, α(1b)-and α(1d)-AR) and at native rat 5-HT(1A) receptor and for antagonist affinity at α(1A)-, α(1B)-and α(1D)-AR and at α(2A/D)-AR. Among the selected 8-substituents, namely fluorine, chlorine, methoxyl and hydroxyl, only the last caused significant decrease of α(1) binding affinity in comparison with the lead compound. Functional tests on the S isomers confirmed the detrimental effect of OH positioned in proximity to benzodioxane O(1). For the other three substituents (F, Cl, OMe), the α(1A) and the α(1D) antagonist affinities were generally lower than the α(1a) and α(1d) binding affinities, but not the α(1B) antagonist affinity, which was similar and sensibly higher compared to α(1b) binding affinity in the case of F and OMe respectively. This trend confers significant α(1B)-AR selectivity, in particular, to the 8-methoxy analogue of (S)-WB4101, a new potent (pA(2) 9.58) α(1B)-AR antagonist. The S enantiomers of all the tested compounds were proved to act as α(1)-AR inverse agonists in a vascular model.
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Affiliation(s)
- Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche, Università di Milano, via Mangiagalli 25, I-20133 Milano, Italy
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Comparative Molecular Field Analysis (CoMFA) and Comparative Molecular Similarity Indices Analysis (CoMSIA) studies on α(1A)-adrenergic receptor antagonists based on pharmacophore molecular alignment. Int J Mol Sci 2011; 12:7022-37. [PMID: 22072933 PMCID: PMC3211024 DOI: 10.3390/ijms12107022] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 09/05/2011] [Accepted: 10/11/2011] [Indexed: 11/16/2022] Open
Abstract
The α1A-adrenergic receptor (α1A-AR) antagonist is useful in treating benign prostatic hyperplasia, lower urinary tract symptoms, and cardiac arrhythmia. Three-dimensional quantitative structure-activity relationship (3D-QSAR) studies were performed on a set of α1A-AR antagonists of N-aryl and N-nitrogen class. Statistically significant models constructed from comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) were established based on a training set of 32 ligands using pharmacophore-based molecular alignment. The leave-oneout cross-validation correlation coefficients were q2CoMFA = 0.840 and q2CoMSIA = 0.840. The high correlation between the cross-validated/predicted and experimental activities of a test set of 12 ligands revealed that the CoMFA and CoMSIA models were robust (r2pred/CoMFA = 0.694; r2pred/CoMSIA = 0.671). The generated models suggested that electrostatic, hydrophobic, and hydrogen bonding interactions play important roles between ligands and receptors in the active site. Our study serves as a guide for further experimental investigations on the synthesis of new compounds. Structural modifications based on the present 3D-QSAR results may lead to the discovery of other α1A-AR antagonists.
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QSAR studies on a number of pyrrolidin-2-one antiarrhythmic arylpiperazinyls. Med Chem Res 2011; 21:373-381. [PMID: 22308062 PMCID: PMC3265727 DOI: 10.1007/s00044-010-9540-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Accepted: 12/10/2010] [Indexed: 12/18/2022]
Abstract
The activity of a number of 1-[3-(4-arylpiperazin-1-yl)propyl]pyrrolidin-2-one antiarrhythmic (AA) agents was described using the quantitative structure–activity relationship model by applying it to 33 compounds. The molecular descriptors of the AA activity were obtained by quantum chemical calculations combined with molecular modeling calculations. The resulting model explains up to 91% of the variance and it was successfully validated by four tests (LOO, LMO, external test, and Y-scrambling test). Statistical analysis shows that the AA activity of the studied compounds depends mainly on the PCR and JGI4 descriptors.
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Carrieri A, Piergentili A, Bello FD, Giannella M, Pigini M, Leonardi A, Fanelli F, Quaglia W. Structure–activity relationships in 1,4-benzodioxan-related compounds. 10. Novel α1-adrenoreceptor antagonists related to openphendioxan: Synthesis, biological evaluation, and α1d computational study. Bioorg Med Chem 2010; 18:7065-77. [DOI: 10.1016/j.bmc.2010.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2010] [Revised: 07/28/2010] [Accepted: 08/02/2010] [Indexed: 01/03/2023]
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Gupta AK, Saxena AK. 3D-QSAR CoMFA and CoMSIA studies on a set of diverse α1a-adrenergic receptor antagonists. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9379-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Allsop GL, Cole AJ, Giles ME, Merifield E, Noble AJ, Pritchett MA, Purdie LA, Singleton JT. A Convergent Synthesis of AR-C123196 Utilising Reaction Between a Cyclic Carbonate and a Phenol for Aryl Alkyl Ether Formation. Org Process Res Dev 2009. [DOI: 10.1021/op9000687] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Glyn L. Allsop
- AstraZeneca R & D Charnwood, Process R & D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
| | - Andrea J. Cole
- AstraZeneca R & D Charnwood, Process R & D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
| | - Melvyn E. Giles
- AstraZeneca R & D Charnwood, Process R & D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
| | - Eric Merifield
- AstraZeneca R & D Charnwood, Process R & D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
| | - Allison J. Noble
- AstraZeneca R & D Charnwood, Process R & D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
| | - Michael A. Pritchett
- AstraZeneca R & D Charnwood, Process R & D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
| | - Lindsay A. Purdie
- AstraZeneca R & D Charnwood, Process R & D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
| | - John T. Singleton
- AstraZeneca R & D Charnwood, Process R & D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
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Nowaczyk A, Kulig K, Malawska B. 1-(3-(4-Arylpiperazin-1-yl)-propyl)-Pyrrolidin-2-one Derivatives as α1
-Adrenoceptor Antagonists: A QSAR Study. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/qsar.200810145] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Jain KS, Bariwal JB, Kathiravan MK, Phoujdar MS, Sahne RS, Chauhan BS, Shah AK, Yadav MR. Recent advances in selective α1-adrenoreceptor antagonists as antihypertensive agents. Bioorg Med Chem 2008; 16:4759-800. [DOI: 10.1016/j.bmc.2008.02.091] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2008] [Revised: 02/27/2008] [Accepted: 02/27/2008] [Indexed: 11/29/2022]
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Conejo-García A, Gallo MA, Espinosa A, Campos JM. Latest advances on regiospecific microwave-assisted synthesis of novel purine derivatives as antitumor agents. Expert Opin Ther Pat 2008. [DOI: 10.1517/13543776.18.2.211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Díaz-Gavilán M, Conejo-García A, Cruz-López O, Núñez M, Choquesillo-Lazarte D, González-Pérez J, Rodríguez-Serrano F, Marchal J, Aránega A, Gallo M, Espinosa A, Campos J. Synthesis and Anticancer Activity of (R,S)-9-(2,3-Dihydro-1,4-Benzoxathiin-3-ylmethyl)-9H-Purines. ChemMedChem 2008; 3:127-35. [DOI: 10.1002/cmdc.200700180] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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21
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Pallavicini M, Budriesi R, Fumagalli L, Ioan P, Chiarini A, Bolchi C, Ugenti MP, Colleoni S, Gobbi M, Valoti E. WB4101-Related Compounds: New, Subtype-Selective α1-Adrenoreceptor Antagonists (or Inverse Agonists?). J Med Chem 2006; 49:7140-9. [PMID: 17125266 DOI: 10.1021/jm060358r] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Our previous structure-affinity relationship study had considered the enantiomers of the naphthodioxane, tetrahydronaphthodioxane, and 2-methoxy-1-naphthoxy analogues (compounds 1, 3, and 2, respectively) of 2-(2,6-dimethoxyphenoxyethylaminomethyl)-1,4-benzodioxane, the well-known alpha1-adrenoceptor (alpha1-AR) antagonist WB4101, showing that such modifications significantly modulate the affinity and selectivity profile for alpha1-AR subtypes and 5-HT1A receptor. Here, we extend investigations to antagonist activity enclosing new enantiomeric pairs, namely those of the methoxytetrahydronaphthoxy and methoxybiphenyloxy WB4101 analogues (4 and 5-7, respectively) and of a double-modified WB4101 derivative (8) resulting from hybridization between 2 and 3. We found that (S)-2 is a very potent (pA2 10.68) and moderately selective alpha1D-AR antagonist and the hybrid (S)-8 is a potent (pA2 7.98) and highly selective alpha1A-AR antagonist. Both of these compounds and (S)-WB4101 seem to act as inverse agonists in a vascular model. The results, which generally validate the logic we followed in designing these eight compounds, are acceptably rationalized by comparative SAR analysis of binding and functional affinities.
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Affiliation(s)
- Marco Pallavicini
- Istituto di Chimica Farmaceutica e Tossicologica, Università degli Studi di Milano, viale Abruzzi 42, I-20131 Milano, Italy
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