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Ye C, Jiao Y, Chiou MF, Li Y, Bao H. Direct synthesis of pentasubstituted pyrroles and hexasubstituted pyrrolines from propargyl sulfonylamides and allenamides. Chem Sci 2021; 12:9162-9167. [PMID: 34276946 PMCID: PMC8261710 DOI: 10.1039/d1sc02090k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/05/2021] [Indexed: 11/21/2022] Open
Abstract
Multisubstituted pyrroles are important fragments that appear in many bioactive small molecule scaffolds. Efficient synthesis of multisubstituted pyrroles with different substituents from easily accessible starting materials is challenging. Herein, we describe a metal-free method for the preparation of pentasubstituted pyrroles and hexasubstituted pyrrolines with different substituents and a free amino group by a base-promoted cascade addition-cyclization of propargylamides or allenamides with trimethylsilyl cyanide. This method would complement previous methods and support expansion of the toolbox for the synthesis of valuable, but previously inaccessible, highly substituted pyrroles and pyrrolines. Mechanistic studies to elucidate the reaction pathway have been conducted.
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Affiliation(s)
- Changqing Ye
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 People's Republic of China
| | - Yihang Jiao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 People's Republic of China
| | - Mong-Feng Chiou
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 People's Republic of China
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 People's Republic of China
| | - Hongli Bao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
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Stachulski AV, Meng X. Glucuronides from metabolites to medicines: a survey of the in vivo generation, chemical synthesis and properties of glucuronides. Nat Prod Rep 2013; 30:806-48. [DOI: 10.1039/c3np70003h] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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3
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Xie G, Nie T, Mackenzie GG, Sun Y, Huang L, Ouyang N, Alston N, Zhu C, Murray OT, Constantinides PP, Kopelovich L, Rigas B. The metabolism and pharmacokinetics of phospho-sulindac (OXT-328) and the effect of difluoromethylornithine. Br J Pharmacol 2012; 165:2152-66. [PMID: 21955327 PMCID: PMC3413853 DOI: 10.1111/j.1476-5381.2011.01705.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 08/09/2011] [Accepted: 09/07/2011] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND PURPOSE Phospho-sulindac (PS; OXT-328) prevents colon cancer in mice, especially when combined with difluoromethylornithine (DFMO). Here, we explored its metabolism and pharmacokinetics. EXPERIMENTAL APPROACH PS metabolism was studied in cultured cells, liver microsomes and cytosol, intestinal microsomes and in mice. Pharmacokinetics and biodistribution of PS were studied in mice. KEY RESULTS PS undergoes reduction and oxidation yielding PS sulphide and PS sulphone; is hydrolysed releasing sulindac, which generates sulindac sulphide (SSide) and sulindac sulphone (SSone), all of which are glucuronidated. Liver and intestinal microsomes metabolized PS extensively but cultured cells converted only 10% of it to PS sulphide and PS sulphone. In mice, oral PS is rapidly absorbed, metabolized and distributed to the blood and other tissues. PS survives only partially intact in blood; of its three major metabolites (sulindac, SSide and SSone), sulindac has the highest C(max) and SSone the highest t(1/2) ; their AUC(0-24h) are similar. Compared with conventional sulindac, PS generated more SSone but less SSide, which may contribute to the safety of PS. In the gastroduodenal wall of mice, 71% of PS was intact; sulindac, SSide and SSone together accounted for <30% of the total. This finding may explain the lack of gastrointestinal toxicity by PS. DFMO had no effect on PS metabolism but significantly reduced drug level in mouse plasma and other tissues. CONCLUSIONS AND IMPLICATIONS Our findings establish the metabolism of PS define its pharmacokinetics and biodistribution, describe its interactions with DFMO and largely explain its gastrointestinal safety.
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Affiliation(s)
- G Xie
- Department of Medicine, Stony Brook University, Stony Brook, NY, USA
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4
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Liu W, Zhou J, Liu Y, Liu H, Bensdorf K, Guo C, Gust R. Licofelone-nitric oxide donors as anticancer agents. Arch Pharm (Weinheim) 2011; 344:487-93. [PMID: 21681808 DOI: 10.1002/ardp.201000397] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 02/03/2011] [Accepted: 02/11/2011] [Indexed: 01/10/2023]
Abstract
Five licofelone ([2,2-dimethyl-6-(4-chlorophenyl)-7-phenyl-2,3-dihydro-1H-pyrrolizin-5-yl]acetic acid) nitric oxide donor conjugates were developed by a parallel synthesis approach. The biological screening revealed that compounds with a propyl (6b), butyl (6c), or octyl (6d) chain between licofelone and the nitric oxide donor exhibited high antiproliferative potency at MCF-7 and MDA-MB-231 breast cancer as well as at HT-29 colon cancer cells. Moreover, 6b-d possessed at least 2-fold higher cytotoxicity at MDA-MB-231 cells than the parent compound licofelone although they showed less inhibitory activity at COX-1 and COX-2. A correlation between COX inhibition and growth inhibitory properties is not visible. However, the high levels of nitric oxide production of the compounds may result in their high cytotoxic activity.
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Affiliation(s)
- Wukun Liu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, P.R. China
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5
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Latli B, Hrapchak M, Seetharama R, Krishnamurthy D, Senanayake CH. Chemical synthesis of allyl-[13C6]-glucuronate. J Labelled Comp Radiopharm 2011. [DOI: 10.1002/jlcr.1875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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6
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Liu W, Zhou J, Bensdorf K, Zhang H, Liu H, Wang Y, Qian H, Zhang Y, Wellner A, Rubner G, Huang W, Guo C, Gust R. Investigations on cytotoxicity and anti-inflammatory potency of licofelone derivatives. Eur J Med Chem 2011; 46:907-13. [PMID: 21295381 DOI: 10.1016/j.ejmech.2011.01.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Revised: 11/22/2010] [Accepted: 01/05/2011] [Indexed: 02/08/2023]
Abstract
A series of C5-substituted licofelone ([2,2-dimethyl-6-(4-chlorophenyl)-7-phenyl-2,3-dihydro-1H-pyrrolizin-5-yl]acetic acid) derivatives were developed by a parallel synthesis approach and investigated for cytotoxicity against MCF-7 and MDA-MB-231 cells as well as for anti-inflammatory potency in vitro and in vivo. Dependent on the C5-substituent, the compounds showed high selectivity for MCF-7 cells. Especially 2-oxoethyl benzoate derivatives were inactive at the MDA-MB-231 cell line and as active as 5-FU at MCF-7 cells. C5-acetyl (8a), -2-oxoethyl formiate (8e), -2-oxoethyl acetate (8f) and -2-oxoethyl propionate (8g) derivatives showed growth inhibition at both cell lines, comparable with cisplatin. Modifications significantly reduced the inhibitory potency at COX-1 and COX-2 in vitro and in the xylene-induced ear swelling assay in mice. Only compound 8a was equipotent to licofelone, ibuprofen and celecoxibe in vivo.
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Affiliation(s)
- Wukun Liu
- Department of Medicinal Chemistry, China Pharmaceutical University, Tongjia Xiang 24, 210009 Nanjing, PR China
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Swamy KCK, Kumar NNB, Balaraman E, Kumar KVPP. Mitsunobu and Related Reactions: Advances and Applications. Chem Rev 2009; 109:2551-651. [PMID: 19382806 DOI: 10.1021/cr800278z] [Citation(s) in RCA: 868] [Impact Index Per Article: 57.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K. C. Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad − 500046, A. P., India
| | - N. N. Bhuvan Kumar
- School of Chemistry, University of Hyderabad, Hyderabad − 500046, A. P., India
| | - E. Balaraman
- School of Chemistry, University of Hyderabad, Hyderabad − 500046, A. P., India
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Albrecht W, Unger A, Nussler AK, Laufer S. In Vitro Metabolism of 2-[6-(4-Chlorophenyl)-2,2-dimethyl-7-phenyl-2,3-dihydro-1H-pyrrolizin-5-yl] Acetic Acid (Licofelone, ML3000), an Inhibitor of Cyclooxygenase-1 and -2 and 5-Lipoxygenase. Drug Metab Dispos 2008; 36:894-903. [PMID: 18268076 DOI: 10.1124/dmd.108.020347] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Wolfgang Albrecht
- c-a-i-r biosciences GmbH, Paul-Ehrlich-Str. 15, 72076 Tübingen, Germany.
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9
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Lahmann M, Bergström MA, Turek D, Oscarson S. Synthesis of Urine Drug Metabolites: Glucuronosyl Esters of Carboxymefloquine, Indoprofen, (S)‐Naproxen, and Desmethyl (S)‐Naproxen. J Carbohydr Chem 2006. [DOI: 10.1081/car-120034003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Martina Lahmann
- a Department of Chemistry , Göteborg University , S‐412 96, Göteborg, Sweden
| | | | - Dominika Turek
- b Department of Organic Chemistry, Arrhenius Laboratory , Stockholm University , Stockholm, Sweden
- c AstraZeneca R&D Södertälje , S‐151 85, So¨derta¨lje, Sweden
| | - Stefan Oscarson
- b Department of Organic Chemistry, Arrhenius Laboratory , Stockholm University , Stockholm, Sweden
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10
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Ranatunge RR, Garvey DS, Janero DR, Letts LG, Martino AM, Murty MG, Richardson SK, Young DV, Zemetseva IS. Synthesis and selective cyclooxygenase-2 (COX-2) inhibitory activity of a series of novel bicyclic pyrazoles. Bioorg Med Chem 2004; 12:1357-66. [PMID: 15018908 DOI: 10.1016/j.bmc.2004.01.012] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2003] [Revised: 01/13/2004] [Accepted: 01/14/2004] [Indexed: 11/17/2022]
Abstract
Novel series of pyrazolo[5,1-b]1,3-oxazolidines, pyrazolo[5,1-b]1,3-oxazines and imidazolidino[1,2-d]pyrazoles were synthesized. These compounds were evaluated in vitro for their ability to inhibit cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) in human whole blood (HWB). Several of the compounds were found to be novel and selective COX-2 inhibitors, the most potent and selective being 1-(5-cyclohexyl (2H,3H-pyrazolo[5,1-b]-1,3-oxazolidin-6-yl)-4-(methylsulfonyl)benzene, 7a (IC(5o) for COX-1>100 microM; for COX-2=1.3 microM).
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11
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Lida T, Nakamori R, Yabuta R, Yada S, Takagi Y, Mano N, Ikegawa S, Goto J, Nambara T. Potential bile acid metabolites. 24. An efficient synthesis of carboxyl-linked glucosides and their chemical properties. Lipids 2002; 37:101-10. [PMID: 11876257 DOI: 10.1007/s11745-002-0869-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A facile and efficient synthesis of the carboxyl-linked glucosides of bile acids is described. Direct esterification of unprotected bile acids with 2,3,4,6-tetra-O-benzyl-D-glucopyranose in pyridine in the presence of 2-chloro-1,3,5-trinitrobenzene as a coupling agent afforded a mixture of the alpha- and beta-anomers (ca. 1:3) of the 1-O-acyl-D-glucoside benzyl ethers of bile acids, which was separated effectively on a C18 reversed-phase chromatography column (isolated yields of alpha- and beta-anomers are 4-9% and 12-19%, respectively). Subsequent hydrogenolysis of the alpha- and beta-acyl glucoside benzyl ethers on a 10% Pd-C catalyst in acetic acid/methanol/EtOAc (1:2:2, by vol) at 35 degrees C under atmospheric pressure gave the corresponding free esters in good yields (79-89%). Chemical specificities such as facile hydrolysis and transesterification of the acyl glucosides in various solvents were also discussed.
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Affiliation(s)
- Takashi Lida
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Setagaya, Tokyo, Japan.
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12
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Cossy J, Belotti D. Synthetic studies towards ML-3000 a concise synthesis of this non-steroidal anti-inflammatory drug. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00176-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ikegawa S, Murao N, Oohashi J, Goto J. Separatory determination of diastereomeric ibuprofen glucuronides in human urine by liquid chromatography/electrospray ionization-mass spectrometry. Biomed Chromatogr 1998; 12:317-21. [PMID: 9861489 DOI: 10.1002/(sici)1099-0801(199811/12)12:6<317::aid-bmc752>3.0.co;2-t] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A method for the separatory determination of diastereomeric isomers of glucuronic acid conjugates of ibuprofen having a carboxyl group at the chiral center by liquid chromatography (LC)/electrospray ionization (ESI)-mass spectrometry (MS) has been developed. The authentic specimens of acyl glucuronides of R(-)- and S(+)-ibuprofen were chemically synthesized by the Mitsunobu reaction. In the ESI mode, the glucuronides were characterized by an abundant quasi-molecular ion [M-H]-, and the formation of the negative ion was markedly influenced by a drift voltage. The resolution of diastereomeric isomers was achieved on a Develosil ODS-HG-5 column with 20 mM ammonium acetate (pH 5.0):acetonitrile (5:2, v/v) as a mobile phase where diastereomers were monitored with a corresponding quasi-molecular ion. After oral administration of racemic ibuprofen, a preferential excretion of (S)-ibuprofen glucuronide into the urine was observed.
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Affiliation(s)
- S Ikegawa
- Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
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14
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Abstract
The synthesis of acyl glucuronides of common bile acids is described. By means of the Mitsunobu reaction employing diethylazodicarboxylate and triphenylphosphine, bile acids were condensed through the inherent C-24 carboxy group with benzyl 2,3,4-tri-O-benzyl-D-glucopyranuronate, which was prepared from 1-O-methyl-alpha-D-glucose. The separation and purification of the beta-anomers at the anomeric position of the sugar moiety were attained by preparative thin-layer chromatography and/or high-performance liquid chromatography on a column packed with phenyl-bonded silica using H2O-MeOH as a mobile phase. The removal of the benzyl group on the sugar moiety was achieved by catalytic hydrogenation with 10% palladium on carbon to yield the desired acyl glucuronides of bile acids. The structures of these acyl glucuronides were confirmed by proton nuclear magnetic resonance spectral properties.
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Affiliation(s)
- J Goto
- Faculty of Pharmaceutical Sciences, Tohoku University, Aobayama Sendai, Japan
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