4-cyclamine alkoxy-3-methoxyl cinnamic acid benzamide compound, preparation method and application of compound
The technology of benzamide cinnamate and cycloamine alkoxy is applied in the field of drugs for treating and/or preventing neurodegenerative diseases, and can solve the problems of many toxic and side effects, single target of action, poor long-term efficacy in AD patients, and the like, To achieve cell damage protection, cell damage significant effect
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Embodiment 1-15
[0044] A preparation method of 4-cycloamine alkoxy-3-methoxycinnamic acid benzamide compound, comprising the following steps:
[0045] The first step, add ferulic acid, the first solvent, condensing agent and 2-methylaniline in the reaction bottle, stir the reaction, the reaction process is tracked by TLC; after the reaction is completed, the solvent is evaporated under reduced pressure, and the residue is added Dichloromethane was washed successively with saturated aqueous sodium carbonate and saturated aqueous sodium chloride, the organic layer was dried over anhydrous sodium sulfate and filtered, the solvent was evaporated under reduced pressure, and the residue was purified by column chromatography (eluent: dichloromethane : methyl alcohol=30:1v / v), get corresponding ferulic acid benzamide compounds;
[0046] In the second step, the above-mentioned ferulic acid benzamide compound is dissolved in the second solvent, and the base used in the first basic condition and 1-(2'-m...
Embodiment 16
[0055] The specific process conditions are the same as in Example 7, and the difference is the same as the investigation of different substituents. The specific substituents are shown in Table 5, and the obtained 4-aminoalkoxy-3-methoxycinnamate compounds have their chemical structures verified. 1 H-NMR, 13 Confirmed by C-NMR and ESI-MS.
[0056] Table 5 Different Substituent Experiments
[0057]
[0058]
[0059]
Embodiment 17
[0061] A preparation method of a pharmaceutically acceptable salt of a 4-cycloamine alkoxy-3-methoxycinnamic acid benzamide compound, comprising the following steps:
[0062] Take the 4-cycloaminealkoxy-3-methoxycinnamic acid benzamide compound and acetone respectively in Table 5 and stir evenly, then add the acid, heat up and reflux, stir and react for 15-30 minutes, cool to room temperature after the reaction, and reduce The solvent is removed by steaming under pressure, the residue is recrystallized with acetone, and the precipitated solid is filtered to obtain a pharmaceutically acceptable salt of 4-cycloaminoalkoxy-3-methoxycinnamic acid benzamide compound. 1 Confirmed by HNR and ESI-MS.
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