111721-75-6Relevant articles and documents
Preparation method of 1-fluoro-2-bromo-iodobenzene
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Paragraph 0045; 0047; 0050; 0051; 0060; 0069, (2018/06/16)
The invention provides a preparation method of 1-fluoro-2-bromo-iodobenzene. The method comprises the steps that 1-fluorine-2-amidogen-3-nitrobenzene is used as a raw material, 1-fluorine-2-bromine-3-nitrobenzene is obtained through a diazotization and bromination reaction, 1-fluoro-2-bromo-aminobenzene is obtained through a following reduction reaction, and then 1-fluoro-2-bromo-iodobenzene is obtained through a diazotization and iodination reaction. According to the preparation method, under the acidic condition, 1-fluoro-2-bromo-aminobenzene and sodium nitrite react in a solvent, hydrogen iodide or iodate is added to the mixed solution, and 1-fluoro-2-bromo-iodobenzene is obtained through a reaction. The preparation method of 1-fluoro-2-bromo-iodobenzene is high in safety, mild in reaction condition, low in cost, easy to operate and industrialize and high in utilization rate of iodine.
Compositions for Treatment of Cystic Fibrosis and Other Chronic Diseases
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Paragraph 1674, (2015/09/22)
The present invention relates to pharmaceutical compositions comprising an inhibitor of epithelial sodium channel activity in combination with at least one ABC Transporter modulator compound of Formula A, Formula B, Formula C, or Formula D. The invention also relates to pharmaceutical formulations thereof, and to methods of using such compositions in the treatment of CFTR mediated diseases, particularly cystic fibrosis using the pharmaceutical combination compositions.
Approaches to the synthesis of 2,3-dihaloanilines. Useful precursors of 4-functionalized-1 H-indoles
Guilarte, Veronica,Castroviejo, M. Pilar,Garcia-Garcia, Patricia,Fernandez-Rodriguez, Manuel A.,Sanz, Roberto
, p. 3416 - 3437 (2011/06/28)
2,3-Dihaloanilines have been proved as useful starting materials for synthesizing 4-halo-1H-indoles. Subsequent or in situ functionalization of the prepared haloindoles allows the access to a wide variety of 2,4- or 2,3,4-regioselectively functionalized indoles in good overall yields. As no efficient synthetic routes to 2,3-dihaloanilines have been described in the literature, different approaches to the preparation of these 1,2,3-functionalized aromatic precursors are now presented. The most general one involves a Smiles rearrangement from the corresponding 2,3-dihalophenols and allows the preparation of 2,3-dihaloanilides in a straightforward and synthetically useful manner.
COMPOSITIONS FOR TREATMENT OF CYSTIC FIBROSIS AND OTHER CHRONIC DISEASES
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, (2012/04/23)
The present invention relates to pharmaceutical compositions comprising an inhibitor of epithelial sodium channel activity in combination with at least one ABC Transporter modulator compound of Formula A, Formula B, Formula C, or Formula D. The invention also relates to pharmaceutical formulations thereof, and to methods of using such compositions in the treatment of CFTR mediated diseases, particularly cystic fibrosis using the pharmaceutical combination compositions.
Modulators of ATP-binding cassette transporters
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Page/Page column 121, (2008/06/13)
Compounds of the present invention and pharmaceutically acceptable compositions thereof, are useful as modulators of ATP-Binding Cassette (“ABC”) transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator (“CFTR”). The present invention also relates to methods of treating ABC transporter mediated diseases using compounds of the present invention.
Synthetic Entries to 6-Fluoro-7-substituted Indole Derivatives
McKittrick, Brian,Failli, Amedeo,Steffan, Robert J.,Soll, Richard M.,Hughes, Philip,et al.
, p. 2151 - 2163 (2007/10/02)
Three practical synthetic entries of functionalized 6-fluoro-7-substituted indole derivatives were developed in connection with the preparation of 7-fluoro-8-substituted-1,3,4,9-tetrahydropyranoindole-1-acetic acid derivatives 11.The first route, w
Substituted 1,3,4,9-tetrahydropyrano [3,4-B]indole-1-acetic acids
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, (2008/06/13)
Indole derivatives characterized by having a 1,3,4,9-tetrahydropyrano[3,4-b]indole-1-acetic acid nucleus bearing a substituent in position 1-, 4-, 5-, 6-, 7- and 8- are disclosed. The derivatives are useful anti-inflammatory and analgesic agents and methods for their preparation and use are also disclosed.