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Jadhav KA, Bhosle SD, Itage SV, Bhosale RS, Eppa G, Singh Yadav J. A novel method for the synthesis of 2-oxazolines. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Zhou Z, Hu Y, Wang B, He X, Ren G, Feng L. A Concise Synthesis of (±)-Methoxyfumimycin Ethyl Ester. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751914x14011142030158] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Zhiwang Zhou
- School of Pharmaceutical Sciences, Nanchang University, Nanchang, 330006, Jiangxi, P.R. China
| | - Yu Hu
- Department of Chemistry, Nanchang University, Nanchang, 330031, Jiangxi, P.R. China
| | - Bin Wang
- School of Pharmaceutical Sciences, Nanchang University, Nanchang, 330006, Jiangxi, P.R. China
| | - Xiaoru He
- Key Laboratory of Modern Preparation of TCM, Jiangxi University of Traditional Chinese Medicine, Ministry of Education, Nanchang 330004, Jiangxi, P.R. China
| | - Gang Ren
- Key Laboratory of Modern Preparation of TCM, Jiangxi University of Traditional Chinese Medicine, Ministry of Education, Nanchang 330004, Jiangxi, P.R. China
| | - Lihua Feng
- School of Pharmaceutical Sciences, Nanchang University, Nanchang, 330006, Jiangxi, P.R. China
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3
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Sharma VK, Osborn MF, Hassler MR, Echeverria D, Ly S, Ulashchik EA, Martynenko-Makaev YV, Shmanai VV, Zatsepin TS, Khvorova A, Watts JK. Novel Cluster and Monomer-Based GalNAc Structures Induce Effective Uptake of siRNAs in Vitro and in Vivo. Bioconjug Chem 2018; 29:2478-2488. [PMID: 29898368 DOI: 10.1021/acs.bioconjchem.8b00365] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
GalNAc conjugation is emerging as a dominant strategy for delivery of therapeutic oligonucleotides to hepatocytes. The structure and valency of the GalNAc ligand contributes to the potency of the conjugates. Here we present a panel of multivalent GalNAc variants using two different synthetic strategies. Specifically, we present a novel conjugate based on a support-bound trivalent GalNAc cluster, and four others using a GalNAc phosphoramidite monomer that was readily assembled into tri- or tetravalent designs during solid phase oligonucleotide synthesis. We compared these compounds to a clinically used trivalent GalNAc cluster both in vitro and in vivo. In vitro, cluster-based and phosphoramidite-based scaffolds show a similar rate of internalization in primary hepatocytes, with membrane binding observed as early as 5 min. All tested compounds provided potent, dose-dependent silencing, with 2-4% of injected dose recoverable from liver after 1 week. The two preassembled trivalent GalNAc clusters showed higher tissue accumulation and gene silencing relative to di-, tri-, or tetravalent GalNAc conjugates assembled via phosphoramidite chemistry.
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Affiliation(s)
| | | | | | | | | | - Egor A Ulashchik
- Institute of Physical Organic Chemistry , National Academy of Sciences of Belarus , Surganova 13 , 220072 Minsk , Belarus
| | - Yury V Martynenko-Makaev
- Institute of Physical Organic Chemistry , National Academy of Sciences of Belarus , Surganova 13 , 220072 Minsk , Belarus
| | - Vadim V Shmanai
- Institute of Physical Organic Chemistry , National Academy of Sciences of Belarus , Surganova 13 , 220072 Minsk , Belarus
| | - Timofei S Zatsepin
- Center for Translational Biomedicine , Skolkovo Institute of Science and Technology , Skolkovo , 143026 Moscow , Russia.,Department of Chemistry , Lomonosov Moscow State University , Leninskie gory 1-3 , 119992 Moscow , Russia
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4
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Nikolaou A, Ninou I, Kokotou MG, Kaffe E, Afantitis A, Aidinis V, Kokotos G. Hydroxamic Acids Constitute a Novel Class of Autotaxin Inhibitors that Exhibit in Vivo Efficacy in a Pulmonary Fibrosis Model. J Med Chem 2018; 61:3697-3711. [PMID: 29620892 DOI: 10.1021/acs.jmedchem.8b00232] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Autotaxin (ATX) catalyzes the hydrolysis of lysophosphatidylcholine (LPC) generating the lipid mediator lysophosphatidic acid (LPA). Both ATX and LPA are involved in various pathological inflammatory conditions, including fibrosis and cancer, and have attracted great interest as medicinal targets over the past decade. Thus, the development of novel potent ATX inhibitors is of great importance. We have developed a novel class of ATX inhibitors containing the zinc binding functionality of hydroxamic acid. Such novel hydroxamic acids that incorporate a non-natural δ-amino acid residue exhibit high in vitro inhibitory potency over ATX (IC50 values 50-60 nM). Inhibitor 32, based on δ-norleucine, was tested for its efficacy in a mouse model of pulmonary inflammation and fibrosis induced by bleomycin and exhibited promising efficacy. The novel hydroxamic ATX inhibitors provide excellent tools for the study of the role of the enzyme and could contribute to the development of novel therapeutic agents for the treatment of fibrosis and other chronic inflammatory diseases.
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Affiliation(s)
- Aikaterini Nikolaou
- Laboratory of Organic Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis , Athens 15771 , Greece
| | - Ioanna Ninou
- Division of Immunology , Biomedical Sciences Research Center "Alexander Fleming" , Athens 16672 , Greece
| | - Maroula G Kokotou
- Laboratory of Organic Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis , Athens 15771 , Greece
| | - Eleanna Kaffe
- Division of Immunology , Biomedical Sciences Research Center "Alexander Fleming" , Athens 16672 , Greece
| | | | - Vassilis Aidinis
- Division of Immunology , Biomedical Sciences Research Center "Alexander Fleming" , Athens 16672 , Greece
| | - George Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis , Athens 15771 , Greece
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5
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Pharmacological protection of mitochondrial function mitigates acute limb ischemia/reperfusion injury. Bioorg Med Chem Lett 2016; 26:4042-51. [PMID: 27390069 DOI: 10.1016/j.bmcl.2016.06.079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 06/25/2016] [Accepted: 06/27/2016] [Indexed: 12/22/2022]
Abstract
We describe several novel curcumin analogues that possess both anti-inflammatory antioxidant properties and thrombolytic activities. The therapeutic efficacy of these curcumin analogues was verified in a mouse ear edema model, a rat arterial thrombosis assay, a free radical scavenging assay performed in PC12 cells, and in both in vitro and in vivo ischemia/reperfusion models. Our findings suggest that their protective effects partially reside in maintenance of optimal mitochondrial function.
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6
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Synthesis of 2-substituted-4-aryl-6-phenylpyridazin-3(2H)-ones as potential anti-inflammatory and analgesic agents with cardioprotective and ulcerogenic sparing effects. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1588-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Anti-inflammatory, analgesic and antioxidant activities of novel kyotorphin-nitroxide hybrid molecules. Bioorg Med Chem Lett 2016; 26:2005-13. [DOI: 10.1016/j.bmcl.2016.02.086] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 02/26/2016] [Accepted: 02/27/2016] [Indexed: 01/01/2023]
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8
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Chandan N, Moloney MG. A direct route to 2,2,5-trisubstituted pyrrolidines of relevance to kaitocephalin. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.01.130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Colombo R, Mingozzi M, Belvisi L, Arosio D, Piarulli U, Carenini N, Perego P, Zaffaroni N, De Cesare M, Castiglioni V, Scanziani E, Gennari C. Synthesis and biological evaluation (in vitro and in vivo) of cyclic arginine-glycine-aspartate (RGD) peptidomimetic-paclitaxel conjugates targeting integrin αVβ3. J Med Chem 2012; 55:10460-74. [PMID: 23140358 DOI: 10.1021/jm301058f] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A small library of integrin ligand-paclitaxel conjugates 10-13 was synthesized with the aim of using the tumor-homing cyclo[DKP-RGD] peptidomimetics for site-directed delivery of the cytotoxic drug. All the paclitaxel-RGD constructs 10-13 inhibited biotinylated vitronectin binding to the purified αVβ3 integrin receptor at low nanomolar concentration and showed in vitro cytotoxic activity against a panel of human tumor cell lines similar to that of paclitaxel. Among the cell lines, the cisplatin-resistant IGROV-1/Pt1 cells expressed high levels of integrin αVβ3, making them attractive to be tested in in vivo models. cyclo[DKP-f3-RGD]-PTX 11 displayed sufficient stability in physiological solution and in both human and murine plasma to be a good candidate for in vivo testing. In tumor-targeting experiments against the IGROV-1/Pt1 human ovarian carcinoma xenotransplanted in nude mice, compound 11 exhibited a superior activity compared with paclitaxel, despite the lower (about half) molar dosage used.
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Affiliation(s)
- Raffaele Colombo
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, I-20133, Milan, Italy
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11
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Novel β-carboline-tripeptide conjugates attenuate mesenteric ischemia/reperfusion injury in the rat. Eur J Med Chem 2011; 46:2441-52. [DOI: 10.1016/j.ejmech.2011.03.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 02/28/2011] [Accepted: 03/14/2011] [Indexed: 12/24/2022]
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12
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Tomabechi Y, Odate Y, Izumi R, Haneda K, Inazu T. Acceptor specificity in the transglycosylation reaction using Endo-M. Carbohydr Res 2010; 345:2458-63. [DOI: 10.1016/j.carres.2010.08.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2010] [Revised: 08/21/2010] [Accepted: 08/26/2010] [Indexed: 10/19/2022]
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13
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Bi W, Bi Y, Xue P, Zhang Y, Gao X, Wang Z, Li M, Baudy-Floc’h M, Ngerebara N, Gibson KM, Bi L. Synthesis and Characterization of Novel Indole Derivatives Reveal Improved Therapeutic Agents for Treatment of Ischemia/Reperfusion (I/R) Injury. J Med Chem 2010; 53:6763-7. [PMID: 20731361 DOI: 10.1021/jm100529e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Bi
- Department of Surgery, Second Hospital of HeBei Medical University, Shijiazhuang 050000, P. R. China
| | - Yue Bi
- School of Basic Medical Sciences, HeBei Medical University, Shijiazhuang 050000, P. R. China
| | - Ping Xue
- Department of Surgery, Second Hospital of HeBei Medical University, Shijiazhuang 050000, P. R. China
| | - Yanrong Zhang
- Department of Surgery, Second Hospital of HeBei Medical University, Shijiazhuang 050000, P. R. China
| | - Xiang Gao
- Department of Surgery, Second Hospital of HeBei Medical University, Shijiazhuang 050000, P. R. China
| | - Zhibo Wang
- Department of Surgery, Second Hospital of HeBei Medical University, Shijiazhuang 050000, P. R. China
| | - Meng Li
- Department of Surgery, Second Hospital of HeBei Medical University, Shijiazhuang 050000, P. R. China
| | - Michèle Baudy-Floc’h
- UMR 6226 CNRS, ICMV, Sciences Chimiques de Rennes, Université de Rennes I, F-35042 Rennes Cedex, France
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Magpusao AN, Desmond RT, Billings KJ, Fenteany G, Peczuh MW. Synthesis and evaluation of antimigratory and antiproliferative activities of lipid-linked [13]-macro-dilactones. Bioorg Med Chem Lett 2010; 20:5472-6. [PMID: 20709546 DOI: 10.1016/j.bmcl.2010.07.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 07/19/2010] [Accepted: 07/20/2010] [Indexed: 12/21/2022]
Abstract
The biological activities of a family of novel, lipid-linked 13-membered-ring macro-dilactones are reported. These [13]-macro-dilactones were synthesized by diacylation of functionalized diols, followed by ring-closing metathesis under conditions we had previously reported. Antimigratory, cytostatic and cytotoxic activities of the compounds against cancer cells were evaluated. Compound 13 was the most potent in the series, while compound 10 had the broadest concentration range of subtoxic antiproliferative activity. These compounds share common structural components, namely the [13]-macro-dilactone templated by an octyl alpha-glucoside 4,6-diol.
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Rüger AJ, Nieger M, Es-Sayed M, Bräse S. Novel 2,5-Disubstituted 1,3-Dioxanes and Oxazolidines as Potential Chemoprevention Agents and Building Blocks for Organic Synthesis. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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