- A scalable synthesis of a histamine H3 receptor antagonist
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Starting from 1-methylimidazole, a concise, scalable, three-step synthesis of the title compound is described. The required 2-chloroimidazole was prepared in very good yield by halogen-metal exchange between the 2-lithio derivative and hexachloroethane.
- Mani, Neelakandha S.,Jablonowski, Jill A.,Jones, Todd K.
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p. 8115 - 8117
(2007/10/03)
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- BENZOFURAN DERIVATIVE
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The present invention provides a benzofuran derivative of the formula [1]: wherein x is a group of the formula: -N="or" -CH=; Y is an optionally substituted amino group, an optionally substituted cycloalkyl group or an optionally substituted saturated heterocyclic group; A is a single bond, a carbon chain optionally having a double bond within or at the end(s) of the chain, or an oxygen atom; R1 is a hydrogen atom or a halogen atom; Ring B is an optionally substituted benzene ring; and R3 is a hydrogen atom, or a pharmaceutically acceptable salt thereof, which is useful as a medicament, especially as an activated blood coagulation factor X inhibitor.
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Page 187-188
(2008/06/13)
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- AROMATIC AMIDES
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This application relates to a compound of formula I (or a pharmaceutically acceptable salt thereof) as defined herein, pharmaceutical compositions thereof, and its use as an inhibitor of factor Xa, as well as a process for its preparation and intermediates therefor.
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- SUBSTITUTED BENZENE DERIVATIVES OR SALTS THEREOF
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There are provided compounds having an anticoagulant action on the basis of inhibition of activated blood coagulation factor X and being useful as anticoagulants or preventive/therapeutic agents for diseases induced by thrombosis or embolism. Effective ingredients are the compounds such as 4'-bromo-2'-[(5-chloro-2-pyridyl)carbamoyl)-6-β-D-galactopyranosyloxy-1-isopropylpiperidine-4-carboxanilide, 2'-(2-acetamido-2-deoxy-β-D-glucopyranosyloxy)-4'-bromo-6'-[(5-chloro-2-pyridyl)carbamoyl]-1-isopropylpiperidine-4-carboxanilide, etc. or salts thereof.
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