- A preparation method of Ranolazine
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The present invention relates to the technical field of ranolazine, in particular to a ranolazine preparation method, the method comprises the following steps: piperazine through the hydroformylation reaction to obtain the 1 - formyl piperazine, then with 2 - chloro - N - (2, 6 - dimethyl-phenyl) acetamide for carrying out the alkylation reaction to obtain N - (2, 6 - dimethyl-phenyl) - 2 - (4 - formyl piperazine) acetamide, then through hydrolytic reaction to obtain N - (2, 6 - dimethyl-phenyl) - 2 - (1 - piperazinyl) acetamide, finally with 2 - (2 - methyl-phenoxymethyl) oxirane ring opening reaction to obtain the ranolazine. The invention preparation of the ranolazine purity is good, high yield.
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Paragraph 0038; 0041; 0044; 0046; 0048; 0050; 0052
(2019/03/28)
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- Adenosine re-uptake inhibiting derivatives of diphenyl oxazoles, thiazoles and imidazoles
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A series of 1-piperazinyl-N-phenylacetamide derivatives of 4,5-diphenyl-oxazoles, thiazoles, and imidazoles which are novel adenosine transport inhibitors have been found to provide effective antiischemic protection for CNS and cardiac tissue, particularly neurons. A method of treatment to protect against CNS ischemia, such as that resulting from trauma, stroke, or other ischemic conditions, comprises administration of these novel compounds to an individual in need of such treatment.
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