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Naderi A, Akıncıoğlu A, Çağan A, Çelikkaleli H, Akıncıoğlu H, Göksu S. Design, synthesis and anticholinergic properties of novel α-benzyl dopamine, tyramine, and phenethylamine derivatives. Bioorg Chem 2024; 144:107146. [PMID: 38262088 DOI: 10.1016/j.bioorg.2024.107146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/25/2024]
Abstract
Due to the important biological properties of dopamine, phenethylamine, and tyramine derivatives in the central nervous system, herein the synthesis of novel α-benzyl dopamine, phenethylamine, and tyramine derivatives is described. The title compounds were synthesized starting from 3-phenylpropanoic acids and methoxybenzenes in six or seven steps. Firstly, 3-(2,3-dimethoxyphenyl)propanoic acid (11) and 3-(3,4-dimethoxyphenyl)propanoic acid (12) were selectively brominated with N-bromosuccinimide (NBS). The Friedel-Crafts acylation of methoxylated benzenes with these brominated acids or commercially available 3-phenylpropanoic acid in polyphosphoric acid gave the desired dihydrochalcones. α-Carboxylation of dihydrochalcones, reduction of benzylic carbonyl groups, hydrolysis of esters to acid derivatives, and the Curtius rearrangement reaction of acids followed by in situ synthesis of carbamates from alkyl isocyanates and hydrogenolysis of the carbamates afforded the title compounds in good total yields. Alzheimer's disease (AD) and Parkinson's disease (PD) are chronic neurodegenerative diseases that become serious over time. However, the exact pathophysiology of both diseases has not been revealed yet. There have been many different approaches to the treatment of patients for many years, especially studies on the cholinergic system cover a wide area. Within the scope of this study, the inhibition effects of dopamine-derived carbamates and amine salts on the cholinergic enzymes AChE and BChE were examined. Dopamine-derived carbamate 24a-i showed inhibition in the micro-nanomolar range; compound 24d showed a Ki value of 26.79 nM against AChE and 3.33 nM against BChE, while another molecule, 24i, showed a Ki range of 27.24 nM and 0.92 nM against AChE and BChE, respectively. AChE and BChE were effectively inhibited by dopamine-derived amine salts 25j-s, with Ki values in the range of 17.70 to 468.57 µM and 0.76-211.23 µM, respectively. Additionally, 24c, 24e and 25m were determined to be 60, 276 and 90 times more selective against BChE than AChE, respectively.
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Affiliation(s)
- Ali Naderi
- Atatürk University, Faculty of Science, Department of Chemistry, Erzurum, Turkiye
| | - Akın Akıncıoğlu
- Ağrı İbrahim Çeçen University, Central Researching Laboratory, 04100, Ağrı, Turkiye; Vocational School, Ağrı İbrahim Çeçen University, 04100, Ağrı, Turkiye
| | - Ahmet Çağan
- Ağrı İbrahim Çeçen University, Central Researching Laboratory, 04100, Ağrı, Turkiye
| | - Hilal Çelikkaleli
- Atatürk University, Faculty of Science, Department of Chemistry, Erzurum, Turkiye
| | - Hülya Akıncıoğlu
- Ağrı İbrahim Çeçen University, Faculty of Arts and Science, 04100 Ağrı, Turkiye
| | - Süleyman Göksu
- Atatürk University, Faculty of Science, Department of Chemistry, Erzurum, Turkiye.
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2
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Akbaba Y. A straightforward synthesis of potentially biologically active novel urea derivatives from 1,2,3,4-tetrahydronaphthalene-2-carboxylic acids. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02982-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Synthesis and characterization of novel bromophenols: Determination of their anticholinergic, antidiabetic and antioxidant activities. Bioorg Chem 2019; 87:91-102. [DOI: 10.1016/j.bioorg.2019.03.010] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 01/21/2023]
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4
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Synthesis of novel sulfamides incorporating phenethylamines and determination of their inhibition profiles against some metabolic enzymes. Arch Pharm (Weinheim) 2018; 351:e1800150. [DOI: 10.1002/ardp.201800150] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/25/2018] [Accepted: 06/29/2018] [Indexed: 02/02/2023]
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5
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Kocak R, Dastan A, Saracoglu N. Synthesis of Pyridazine and Pyrrole Analogues of 2-Aminotetralin as Potential Dopaminergics. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3180] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ramazan Kocak
- Department of Chemistry, Faculty of Sciences; Atatürk University; Erzurum 25240 Turkey
| | - Arif Dastan
- Department of Chemistry, Faculty of Sciences; Atatürk University; Erzurum 25240 Turkey
| | - Nurullah Saracoglu
- Department of Chemistry, Faculty of Sciences; Atatürk University; Erzurum 25240 Turkey
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6
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Aksu K, Özgeriş B, Taslimi P, Naderi A, Gülçin İ, Göksu S. Antioxidant Activity, Acetylcholinesterase, and Carbonic Anhydrase Inhibitory Properties of Novel Ureas Derived from Phenethylamines. Arch Pharm (Weinheim) 2016; 349:944-954. [DOI: 10.1002/ardp.201600183] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 10/18/2016] [Accepted: 10/21/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Kadir Aksu
- Faculty of Arts and Sciences, Department of Chemistry; Ordu University; Ordu Turkey
| | - Bünyamin Özgeriş
- Faculty of Science, Department of Basic Sciences; Erzurum Technical University; Erzurum Turkey
- Faculty of Science, Department of Chemistry; Ataturk University; Erzurum Turkey
| | - Parham Taslimi
- Faculty of Science, Department of Chemistry; Ataturk University; Erzurum Turkey
| | - Ali Naderi
- Faculty of Science, Department of Chemistry; Ataturk University; Erzurum Turkey
| | - İlhami Gülçin
- Faculty of Science, Department of Chemistry; Ataturk University; Erzurum Turkey
- Department of Zoology, College of Science; King Saud University; Riyadh Saudi Arabia
| | - Süleyman Göksu
- Faculty of Science, Department of Chemistry; Ataturk University; Erzurum Turkey
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7
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Özgeriş B, Göksu S, Polat Köse L, Gülçin İ, Salmas RE, Durdagi S, Tümer F, Supuran CT. Acetylcholinesterase and carbonic anhydrase inhibitory properties of novel urea and sulfamide derivatives incorporating dopaminergic 2-aminotetralin scaffolds. Bioorg Med Chem 2016; 24:2318-29. [DOI: 10.1016/j.bmc.2016.04.002] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 03/30/2016] [Accepted: 04/01/2016] [Indexed: 12/20/2022]
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8
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Yılmaz S, Akbaba Y, Özgeriş B, Köse LP, Göksu S, Gülçin İ, Alwasel SH, Supuran CT. Synthesis and inhibitory properties of some carbamates on carbonic anhydrase and acetylcholine esterase. J Enzyme Inhib Med Chem 2016; 31:1484-91. [PMID: 26985691 DOI: 10.3109/14756366.2016.1149477] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A series of carbamate derivatives were synthesized and their carbonic anhydrase I and II isoenzymes and acetylcholinesterase enzyme (AChE) inhibitory effects were investigated. All carbamates were synthesized from the corresponding carboxylic acids via the Curtius reactions of the acids with diphenyl phosphoryl azide followed by addition of benzyl alcohol. The carbamates were determined to be very good inhibitors against for AChE and hCA I, and II isoenzymes. AChE inhibition was determined in the range 0.209-0.291 nM. On the other hand, tacrine, which is used in the treatment of Alzheimer's disease possessed lower inhibition effect (Ki: 0.398 nM). Also, hCA I and II isoenzymes were effectively inhibited by the carbamates, with inhibition constants (Ki) in the range of 4.49-5.61 nM for hCA I, and 4.94-7.66 nM for hCA II, respectively. Acetazolamide, which was clinically used carbonic anhydrase (CA) inhibitor demonstrated Ki values of 281.33 nM for hCA I and 9.07 nM for hCA II. The results clearly showed that AChE and both CA isoenzymes were effectively inhibited by carbamates at the low nanomolar levels.
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Affiliation(s)
- Süleyman Yılmaz
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey
| | - Yusuf Akbaba
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey .,b Department of Basic Science , Faculty of Science, Erzurum Technical University , Erzurum , Turkey
| | - Bünyamin Özgeriş
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey .,b Department of Basic Science , Faculty of Science, Erzurum Technical University , Erzurum , Turkey
| | - Leyla Polat Köse
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey
| | - Süleyman Göksu
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey
| | - İlhami Gülçin
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey .,c Department of Zoology , College of Science, King Saud University , Riyadh , Saudi Arabia
| | - Saleh H Alwasel
- c Department of Zoology , College of Science, King Saud University , Riyadh , Saudi Arabia
| | - Claudiu T Supuran
- d Dipartimento di Chimica Ugo Schiff, Universita Degli Studi di Firenze , Sesto Fiorentino , Firenze , Italy , and.,e Neurofarba Department, Section of Pharmaceutical and Nutriceutical Sciences, Universita Degli Studi di Firenze , Sesto Fiorentino , Florence , Italy
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9
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Antioxidant and acetylcholinesterase inhibition properties of novel bromophenol derivatives. Bioorg Chem 2015; 60:49-57. [PMID: 25956827 DOI: 10.1016/j.bioorg.2015.04.006] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/17/2015] [Accepted: 04/19/2015] [Indexed: 02/05/2023]
Abstract
In this study, series of novel bromophenol derivatives were synthesized and investigated for their antioxidant and AChE inhibition properties. Novel brominated diarylmethanones were obtained from the acylation reactions of benzoic acids with substituted benzenes. One of the bromodiarylmethanone was synthesized from the bromination of diarylmethanone with molecular bromine. All diarylmethanones were converted into their bromophenol derivatives with BBr3. The antioxidant activities of all synthesized compounds were elucidated by using various bioanalytical assays. Radical scavenging activities of compounds 10-24 were evaluated by means of DPPH and ABTS(+) scavenging activities. In addition, reducing ability of 10-24 were determined by Fe(3+), Cu(2+), and [Fe(3+)-(TPTZ)2](3) reducing activities. α-Tocopherol, trolox, BHA, and BHT were used as positive antioxidant and radical scavenger molecules. On the other hand, IC50 values were calculated for DPPH, ABTS(+) scavenging, and AChE inhibition effects of novel compounds. The results obtained from the current studies clearly show that novel bromophenol derivatives 20-24 have considerable antioxidant, antiradical, and AChE inhibition effects.
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10
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Özgeriş B, Aksu K, Tümer F, Göksu S. Synthesis of Dopamine, Rotigotin, Ladostigil, Rasagiline Analogues 2-Amino-4,5,6-trimethoxyindane, 1-Amino-5,6,7-trimethoxyindane, and Their Sulfamide Derivatives. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.957321] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Göksu S, Naderi A, Akbaba Y, Kalın P, Akıncıoğlu A, Gülçin İ, Durdagi S, Salmas RE. Carbonic anhydrase inhibitory properties of novel benzylsulfamides using molecular modeling and experimental studies. Bioorg Chem 2014; 56:75-82. [DOI: 10.1016/j.bioorg.2014.07.009] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 07/19/2014] [Accepted: 07/23/2014] [Indexed: 12/15/2022]
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12
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Akbaba Y, Bastem E, Topal F, Gülçin İ, Maraş A, Göksu S. Synthesis and Carbonic Anhydrase Inhibitory Effects of Novel Sulfamides Derived from 1-Aminoindanes and Anilines. Arch Pharm (Weinheim) 2014; 347:950-7. [DOI: 10.1002/ardp.201400257] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/06/2014] [Accepted: 08/15/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Yusuf Akbaba
- Department of Basic Sciences; Faculty of Science; Erzurum Technical University; Erzurum Turkey
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
| | - Enes Bastem
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
| | - Fevzi Topal
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
- Department of Medical Services and Techniques; Vocational School of Health Services; Gumushane University; Gumushane Turkey
| | - İlhami Gülçin
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
- Department of Zoology; College of Science; King Saud University; Riyadh Saudi Arabia
| | - Ahmet Maraş
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
| | - Süleyman Göksu
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
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13
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Akıncıoğlu A, Topal M, Gülçin İ, Göksu S. Novel Sulphamides and Sulphonamides Incorporating the Tetralin Scaffold as Carbonic Anhydrase and Acetylcholine Esterase Inhibitors. Arch Pharm (Weinheim) 2013; 347:68-76. [DOI: 10.1002/ardp.201300273] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/14/2013] [Accepted: 09/17/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Akın Akıncıoğlu
- Central Researching Laboratory; Agri Ibrahim Cecen University; Agri Turkey
- Faculty of Science; Department of Chemistry; Atatürk University; Erzurum Turkey
| | - Meryem Topal
- Faculty of Science; Department of Chemistry; Atatürk University; Erzurum Turkey
| | - İlhami Gülçin
- Faculty of Science; Department of Chemistry; Atatürk University; Erzurum Turkey
| | - Süleyman Göksu
- Faculty of Science; Department of Chemistry; Atatürk University; Erzurum Turkey
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14
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Göçer H, Akıncıoğlu A, Öztaşkın N, Göksu S, Gülçin İ. Synthesis, Antioxidant, and Antiacetylcholinesterase Activities of Sulfonamide Derivatives of Dopamine-Related Compounds. Arch Pharm (Weinheim) 2013; 346:783-92. [DOI: 10.1002/ardp.201300228] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/27/2013] [Accepted: 08/07/2013] [Indexed: 12/18/2022]
Affiliation(s)
- Hülya Göçer
- Central Researching Laboratory; Agri Ibrahim Cecen University; Agri Turkey
- Faculty of Science, Department of Chemistry; Atatürk University; Erzurum Turkey
| | - Akın Akıncıoğlu
- Central Researching Laboratory; Agri Ibrahim Cecen University; Agri Turkey
- Faculty of Science, Department of Chemistry; Atatürk University; Erzurum Turkey
| | - Necla Öztaşkın
- Faculty of Science, Department of Chemistry; Atatürk University; Erzurum Turkey
| | - Süleyman Göksu
- Faculty of Science, Department of Chemistry; Atatürk University; Erzurum Turkey
| | - İlhami Gülçin
- Faculty of Science, Department of Chemistry; Atatürk University; Erzurum Turkey
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15
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Akbaba Y, Balaydın HT, Menzek A, Göksu S, Şahin E, Ekinci D. Synthesis and biological evaluation of novel bromophenol derivatives as carbonic anhydrase inhibitors. Arch Pharm (Weinheim) 2013; 346:447-54. [PMID: 23649517 DOI: 10.1002/ardp.201300054] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 03/21/2013] [Accepted: 03/28/2013] [Indexed: 01/03/2023]
Abstract
Here, we provide an alternative synthesis of the natural bromophenol 3,4-dibromo-5-(2,3-dibromo-4,5-dihydroxybenzyl)-6-(ethoxymethyl)benzene-1,2-diol (3) and the first synthesis of (4,5-dihydroxy-2-methylphenyl)(3,4-dihydroxyphenyl)methanone (18) and its brominated derivatives 19-21. The compounds were characterized and tested against the two most studied members of the pH regulatory enzyme family, carbonic anhydrase (CA). The inhibitory potencies of the novel compounds and two natural bromophenols 2, 3 were analyzed at the human isoforms hCA I and hCA II as targets and the KI values were calculated. The KI values of the novel compounds were measured in the range of 13.7-32.7 mM for the hCA I isozyme and 0.65-1.26 mM for the hCA II isozyme. The structurally related compound 14 was also tested in order to understand the structure–activity relationship, and the clinically used sulfonamide acetazolamide (AZA)was tested for comparison reasons. All of the compounds exhibited competitive inhibition with 4-nitrophenylacetate as substrate. The compounds showed strong inhibitory activity against hCA I, being more effective as compared to the clinically used AZA (KI: 36.2 mM), but rather less activity against hCA II.
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Affiliation(s)
- Yusuf Akbaba
- Faculty of Science, Department of Chemistry, Atatürk University, Erzurum, Turkey
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16
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Aksu K, Nar M, Tanc M, Vullo D, Gülçin I, Göksu S, Tümer F, Supuran CT. Synthesis and carbonic anhydrase inhibitory properties of sulfamides structurally related to dopamine. Bioorg Med Chem 2013; 21:2925-31. [PMID: 23623256 DOI: 10.1016/j.bmc.2013.03.077] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 03/19/2013] [Accepted: 03/26/2013] [Indexed: 01/08/2023]
Abstract
A series of novel sulfamides incorporating the dopamine scaffold were synthesized. Reaction of amines and tert-butyl-alcohol/benzyl alcohol in the presence of chlorosulfonyl isocyanate (CSI) afforded sulfamoyl carbamates, which were converted to the title compounds by treatment with trifluoroacetic acid or by palladium-catalyzed hydrogenolysis. Inhibition of six α-carbonic anhydrases (CAs, EC 4.2.1.1), that is, CA I, CA II, CA VA, CA IX, CA XII and CA XIV, and two β-CAs from Candida glabrata (CgCA) and Mycobacterium tuberculosis (Rv3588) with these sulfamides was investigated. All CA isozymes were inhibited in the low micromolar to nanomolar range by the dopamine sulfamide analogues. K(i)s were in the range of 0.061-1.822 μM for CA I, 1.47-2.94 nM for CA II, 2.25-3.34 μM for CA VA, 0.041-0.37 μM for CA IX, 0.021-1.52 μM for CA XII, 0.007-0.219 μM for CA XIV, 0.35-5.31 μM for CgCA and 0.465-4.29 μM for Rv3588. The synthesized sulfamides may lead to inhibitors targeting medicinally relevant CA isoforms with potential applications as antiepileptic, antiobesity antitumor agents or anti-infective.
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Affiliation(s)
- Kadir Aksu
- Faculty of Science, Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
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17
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Akıncıoğlu A, Akbaba Y, Göçer H, Göksu S, Gülçin İ, Supuran CT. Novel sulfamides as potential carbonic anhydrase isoenzymes inhibitors. Bioorg Med Chem 2013; 21:1379-85. [PMID: 23394864 DOI: 10.1016/j.bmc.2013.01.019] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/03/2013] [Accepted: 01/10/2013] [Indexed: 01/05/2023]
Abstract
Sulfamides represent an important class of biologically active compounds. A series of novel sulfamides were synthesized from 1-aminoindanes, 1-aminotetralin, 2-aminoindanes and 2-aminotetralin via the reactions of free amines, benzyl alcohol and chlorosulfonyl isocyanate (CSI) followed by hydrogenolysis of the obtained sulfamoylcarbamates. Carbonic anhydrase (CA, EC 4.2.1.1) inhibitory effects of the new sulfamides have been investigated. The human (h) isozymes hCA I and hCA II have been investigated in this study by using an esterase assay with 4-nitrophenyl acetate as substrate. The new sulfamides showed inhibition constants in the micro-submicromolar range, with one compound (N-(indane-1-yl)sulfamide) showing a Ki of 0.45μM against hCA I and of 1.07μM against hCA II.
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Affiliation(s)
- Akın Akıncıoğlu
- Faculty of Science, Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
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18
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Akbaba Y, Akıncıoğlu A, Göçer H, Göksu S, Gülçin İ, Supuran CT. Carbonic anhydrase inhibitory properties of novel sulfonamide derivatives of aminoindanes and aminotetralins. J Enzyme Inhib Med Chem 2013; 29:35-42. [DOI: 10.3109/14756366.2012.750311] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yusuf Akbaba
- Faculty of Science, Department of Chemistry, Atatürk University
ErzurumTurkey
| | - Akın Akıncıoğlu
- Faculty of Science, Department of Chemistry, Atatürk University
ErzurumTurkey
| | - Hülya Göçer
- Faculty of Science, Department of Chemistry, Atatürk University
ErzurumTurkey
- Agri Ibrahim Cecen University, Central Researching Laboratory
AgriTurkey
| | - Süleyman Göksu
- Faculty of Science, Department of Chemistry, Atatürk University
ErzurumTurkey
| | - İlhami Gülçin
- Faculty of Science, Department of Chemistry, Atatürk University
ErzurumTurkey
| | - Claudiu T. Supuran
- Universita degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica, Via della Lastruccia, Sesto Fiorentino (Florence)Italy
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19
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Akbaba Y, Türkeş C, Polat L, Söyüt H, Şahin E, Menzek A, Göksu S, Beydemir Ş. Synthesis and paroxonase activities of novel bromophenols. J Enzyme Inhib Med Chem 2012; 28:1073-9. [DOI: 10.3109/14756366.2012.715287] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Yusuf Akbaba
- Department of Chemistry, Faculty of Science, Atatürk University,
Erzurum, Turkey
| | - Cüneyt Türkeş
- Department of Chemistry, Faculty of Science, Atatürk University,
Erzurum, Turkey
| | - Leyla Polat
- Department of Chemistry, Faculty of Science, Atatürk University,
Erzurum, Turkey
| | - Hakan Söyüt
- Department of Chemistry, Faculty of Science, Atatürk University,
Erzurum, Turkey
| | - Ertan Şahin
- Department of Chemistry, Faculty of Science, Atatürk University,
Erzurum, Turkey
| | - Abdullah Menzek
- Department of Chemistry, Faculty of Science, Atatürk University,
Erzurum, Turkey
| | - Süleyman Göksu
- Department of Chemistry, Faculty of Science, Atatürk University,
Erzurum, Turkey
| | - Şükrü Beydemir
- Department of Chemistry, Faculty of Science, Atatürk University,
Erzurum, Turkey
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20
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Akbaba Y, Türker Balaydın H, Göksu S, Şahin E, Menzek A. Total Synthesis of the Biologically Active, Naturally Occurring 3,4-Dibromo-5-[2-bromo-3,4-dihydroxy-6-(methoxymethyl)benzyl]benzene-1,2-diol and Regioselective O-Demethylation of Aryl Methyl Ethers. Helv Chim Acta 2010. [DOI: 10.1002/hlca.200900300] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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21
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Oztaskin N, Kelebekli L, Goksu S, Anil B, Sahin E. Synthesis and Characterisation of 2,3,4a,6,8a-penta-acetoxy decahydronaphthalene from 1,2,3,4-tetrahydronaphthalen-2-ol. JOURNAL OF CHEMICAL RESEARCH 2009. [DOI: 10.3184/030823409x431337] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
2,3,4a,6,8a-Penta-acetoxy decahydronaphthalene has been synthesised starting from 1,2,3,4-tetrahydronaphthalen-2-ol. The Birch reduction of 1,2,3,4-tetrahydronaphthalen-2-ol gave a high yield of 1,2,3,4,5,8-hexahydronaphthalen-2-ol which was acetylated. The OsO4 oxidation of the 1,2,3,4,5,8-hexahydronaphthalen-2-yl acetate followed by further acetylation gave the pentaacetates.
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Affiliation(s)
- Necla Oztaskin
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Latif Kelebekli
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
- Faculty of Education, University of Ağri Ibrahim Çeçen,04200 Agri, Turkey
| | - Suleyman Goksu
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Baris Anil
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Ertan Sahin
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
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Balci N, Kelebekli L, Goksu S, Anil B, Sahin E. Synthesis and Characterisation of 2,3a,5,6,7a-pentaacetoxy-octahydro-1H-indene from indan-2-ol. JOURNAL OF CHEMICAL RESEARCH 2009. [DOI: 10.3184/030823409x430211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A synthesis of 2,3a,5,6,7a-pentaacetoxyoctahydro-1 H-indene has been achieved starting from indan-2-ol. The Birch reduction of indan-2-ol gave 4,7-dihydro-2-indanol in high yield which when followed by acetylation, resulted in the corresponding acetates. The OsO4 oxidation of the 2-acetoxy-4,7-dihydroindane followed by acetylation furnished the desired pentaacetates in high yield.
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Affiliation(s)
- Neslihan Balci
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Latif Kelebekli
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
- Faculty of Education, Ağrι Ibrahim Çeçen University, 04200 Ağrι, Turkey
| | - Suleyman Goksu
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Baris Anil
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Ertan Sahin
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
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Sahin E, Kishali N, Kelebekli L, Mete E, Secen H, Altundas R, Kara Y. AN EFFICIENT SYNTHESIS OF (R)-GABOB AND OF (+)-GABOB. ORG PREP PROCED INT 2007. [DOI: 10.1080/00304940709458603] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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