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Taher D, Awwadi FF, Pfaff U, Speck JM, Rüffer T, Lang H. A series of Se-ferrocenyl thiophene carboselenoates – Synthesis, solid-state structure and electrochemistry. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.02.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Kawasaki I, Nishide K, Tabuchi Y, Kakumoto Y, Uchimoto H, Ohishi Y. A Novel One-Step Synthesis of Benzo[b]furo[3,2-b]pyridines Having an Amino Group at the 4-Position from Benzo[b]furo[3,2-d][1,3]oxazine. HETEROCYCLES 2013. [DOI: 10.3987/com-12-12615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Akai Y, Tabuchi Y, Ando K, Ito A, Sakata Y, Kawasaki I, Ohishi T, Yamashita M, Ohta S, Nishide K, Ohishi Y. Preparation of Benzo[ b]furans Having Five-Membered Heterocycles at the 2-Position and 2-(4-Alkylcarbamoylbuta-1,3-dienyl)benzo[ b]furans, and Their Cysteinyl Leukotriene Receptor (cysLT1, cysLT2) Inhibitory Activity. Chem Pharm Bull (Tokyo) 2012; 60:1461-7. [DOI: 10.1248/cpb.c12-00560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yukiko Akai
- School of Pharmaceutical Sciences, Mukogawa Women’s University
| | - Yukako Tabuchi
- School of Pharmaceutical Sciences, Mukogawa Women’s University
| | - Kumiko Ando
- School of Pharmaceutical Sciences, Mukogawa Women’s University
| | - Azusa Ito
- School of Pharmaceutical Sciences, Mukogawa Women’s University
| | - Yoko Sakata
- School of Pharmaceutical Sciences, Mukogawa Women’s University
| | - Ikuo Kawasaki
- School of Pharmaceutical Sciences, Mukogawa Women’s University
| | - Takahiro Ohishi
- Science of Environment and Mathematical Modeling, Graduate School of Engineering, Doshisha University
| | | | | | | | - Yoshitaka Ohishi
- School of Pharmaceutical Sciences, Mukogawa Women’s University
- Doshisha Women’s College of Liberal Arts
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Abstract
Three US applications describing a narrow, closely related series of antagonists of the action of leukotriene B(4) on the BLT1 and BLT2 receptors are described. The generic structure claimed is a lipophilic linked diphenyl core containing two acid groups appended to the central phenyl ring. The terminal phenyl moiety contains disubstitution at the 3'- and 5'-positions. These three applications differ in the nature of the substituent on the terminal phenyl group as well as the linking moiety between the two phenyl rings. These compounds are claimed to have utility in inflammatory diseases such as severe asthma and chronic obstructive pulmonary disease.
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Affiliation(s)
- John H Hutchinson
- Amira Pharmaceuticals, Inc., 9535 Waples Street, Suite 100, San Diego, CA 92121, USA.
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Kuramoto M, Sakata Y, Terai K, Kawasaki I, Kunitomo JI, Ohishi T, Yokomizo T, Takeda S, Tanaka S, Ohishi Y. Preparation of leukotriene B4 inhibitory active 2- and 3-(2-aminothiazol-4-yl)benzo[b]furan derivatives and their growth inhibitory activity on human pancreatic cancer cells. Org Biomol Chem 2008; 6:2772-81. [DOI: 10.1039/b803313g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ando K, Kawamura Y, Akai Y, Kunitomo JI, Yokomizo T, Yamashita M, Ohta S, Ohishi T, Ohishi Y. Preparation of 2-, 3-, 4- and 7-(2-alkylcarbamoyl-1-alkylvinyl)benzo[b]furans and their BLT1 and/or BLT2 inhibitory activities. Org Biomol Chem 2007; 6:296-307. [PMID: 18174999 DOI: 10.1039/b710935k] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several 2-alkylcarbamoyl-1-alkylvinylbenzo[b]furans were designed to find a selective leukotriene B4 (LTB4) receptor antagonist. 2-(2-Alkylcarbamoyl-1-alkylvinyl)benzo[b]furans having a substituent group at the 3-position, 4-(2-alkylcarbamoyl-1-methylvinyl)benzo[b]furans having a substituent group at the 3-position, and 7-(2-alkylcarbamoyl-1-methylvinyl)benzo[b]furans and 3-(2-alkylcarbamoyl-1-alkylvinyl)benzo[b]furans were prepared and evaluated for LTB4 receptor (BLT1 and BLT2) inhibitory activities. (E)-3-Amino-4-[2-[2-(3,4-dimethoxyphenyl)ethylcarbamoyl]-1-methylvinyl]benzo[b]furan ((E)-17c) showed potent and selective inhibitory activity for BLT2. On the other hand, (E)-7-(2-diethylcarbamoyl-1-methylvinyl)benzo[b]furan ((E)-27a) showed potent inhibitory activity for both BLT1 and BLT2.
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Affiliation(s)
- Kumiko Ando
- School of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyuban-cho, Nishinomiya 663-8179, Japan
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Sakata Y, Kuramoto M, Ando K, Yamaguchi M, Kawasaki I, Kunitomo JI, Yokomizo T, Ohishi Y. Preparation of 3-(4-chlorophenyl)-2-(2-aminothiazol-4-yl)-5-methoxybenzo[b]furan derivatives and their leukotriene B4 inhibitory activity. Org Biomol Chem 2007; 5:3083-6. [PMID: 17878965 DOI: 10.1039/b711391a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of 3-(4-chlorophenyl)-2-(2-aminothiazol-4-yl)benzo[b]furan derivatives 6-10 were prepared and their leukotriene B(4) inhibitory activity was evaluated. We found that several compounds showed strong inhibition of calcium mobilization in CHO cells overexpressing human BLT(1) and BLT(2) receptors. Among them, 3-(4-chlorophenyl)-2-[5-formyl-2-[(dimethylamino)methyleneamino]thiazol-4-yl]-5-methoxybenzo[b]furan 9b showed the most potent and selective inhibition for the human BLT(2) receptor, and its IC(50) value was smaller than that of the selected positive control compound, ZK-158252.
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Affiliation(s)
- Yoko Sakata
- School of Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Japan
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Ando K, Akai Y, Kunitomo JI, Yokomizo T, Nakajima H, Takeuchi T, Yamashita M, Ohta S, Ohishi T, Ohishi Y. Synthesis and biological activities of novel furo[2,3,4-jk][2]benzazepin-4(3H)-one derivatives. Org Biomol Chem 2007; 5:655-63. [PMID: 17285174 DOI: 10.1039/b614510h] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A novel seven-membered lactam formation method has been established by intramolecular ring closure reaction of 4-bromo-(E)-3-[(2-alkylvinyl)carbonylamino]benzo[b]furans under Heck coupling conditions. A number of furo[2,3,4-jk][2]benzazepin-4(3H)-ones, tricyclicbenzo[b]furans, have been prepared by this method and evaluated for their leukotriene B(4) (LTB(4)) receptor and poly(ADP-ribose)polymerase-1 (PARP-1) inhibitory activities.
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Affiliation(s)
- Kumiko Ando
- School of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyuban-cho, Nishinomiya 663-8179, Japan
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Ando K. Synthesis of 2-, 4- and 5-(2-Alkylcarbamoyl-1-methylvinyl)-7-alkyloxybenzo[ b]furans and their Leukotriene B 4 Receptor Antagonistic Activity. YAKUGAKU ZASSHI 2005; 125:863-74. [PMID: 16272807 DOI: 10.1248/yakushi.125.863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Variable 7-carboxylpropoxy or (1-phenyl)ethoxybenzo[b]furan derivatives with (E)- and (Z)-2-alkylcarbamoyl-1-methylvinyl groups at the 2-, 4-, and 5-positions were prepared to find novel and selective leukotriene B(4) (LTB(4)) receptor antagonists. (E)-2-(2-Diethylcarbamoyl-1-methylvinyl)-7-(1-phenylethoxy)benzo[b]furan (4v) showed selective inhibition of the human BLT(2) receptor (hBLT(2)). On the other hand, (E)-2-acetyl-4-(2-diethylcarbamoyl-1-methylvinyl)-7-(1-phenylethoxy)benzo[b]furan (7c) inhibited both human BLT(1) receptor (hBLT(1)) and hBLT(2). The (E)-2-(2-diethylcarbamoyl-1-methylvinyl) group lay on approximately the same plane as the benzo[b]furan ring, whereas the (E)-4-(2-diethylcarbamoyl-1-methylvinyl) group had a torsion angle (45.7 degrees ) from the benzo[b]furan ring plane. However, the (Z)-(2-alkylcarbamoyl-1-methylvinyl)benzo[b]furans were inactive. The inhibitory activity depended on the conformation of the 2-alkylcarbamoyl-1-methylvinyl groups.
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Affiliation(s)
- Kumiko Ando
- Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Japan.
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Ando K, Tsuji E, Ando Y, Kunitomo JI, Kobayashi R, Yokomizo T, Shimizu T, Yamashita M, Ohta S, Nabe T, Kohno S, Ohishi Y. Synthesis of 2-, 4- and 5-(2-alkylcarbamoyl-1-methylvinyl)-7-alkyloxybenzo[b]furans and their leukotriene B4 receptor antagonistic activity. Org Biomol Chem 2005; 3:2129-39. [PMID: 15917901 DOI: 10.1039/b503615a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Variable benzo[b]furan derivatives having (E)- and (Z)-2-alkylcarbamoyl-1-methylvinyl groups at the 2-, 4- and 5-positions and a carboxylpropoxy or (1-phenyl)ethoxy group at the 7-position were prepared to find novel and selective leukotriene B4(LTB4) receptor antagonists. (E)-2-(2-diethylcarbamoyl-1-methylvinyl)-7-(1-phenylethoxy)benzo[b]furan (4v) showed selective inhibition to the human BLT2 receptor (hBLT2). On the other hand, (E)-2-acetyl-4-(2-diethylcarbamoyl-1-methylvinyl)-7-(1-phenylethoxy)benzo[b]furan (7v) inhibited both human BLT(1) receptor (hBLT1) and hBLT2. The (E)-2-(2-diethylcarbamoyl-1-methylvinyl) group lay on approximately the same plane as the benzo[b]furan ring, whereas the (E)-4-(2-diethylcarbamoyl-1-methylvinyl) group had the torsion angle (45.7 degree) from the benzo[b]furan ring plane. However, the (Z)-(2-alkylcarbamoyl-1-methylvinyl)benzo[b]furans were inactive. The inhibitory activity depended on the conformation of the 2-diethylcarbamoyl-1-methylvinyl group.
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Affiliation(s)
- Kumiko Ando
- School of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyuban-cho, Nishinomiya 663-8179, Japan
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