- Amine ethylated piperazine and preparation method thereof
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The invention provides a preparation method of an amine ethylated piperazine, and relates to the technical field of preparation of aminoethyl piperazine. The method comprises the following steps: mixing a piperazine compound, a chlorination reagent and a soluble piperazine compound solvent to carry out chlorination reaction to obtain the chloropiperazine hydrochloride. The piperazine compound comprises 2 - hydroxyethyl piperazine or N, N' - bis (2 - hydroxyethyl) piperazine. The chloropiperazine hydrochloride, the organic amine and the water are mixed, and the substitution reaction is carried out to obtain the aminated piperazine. The organic amine includes methylamine. Diethylamine, propylamine. The preparation method provided by the invention is high in product yield, high in purity, simple to operate, wide in reaction raw material source, low in production cost and suitable for industrial production.
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Paragraph 0049-0052; 0054-0057; 0059-0062
(2021/10/16)
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- Design and Synthesis of RNA-Specific Groove-Binding Cations: Implications for Antiviral Drug Design
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As as initial step in the design of structure-specific RNA-interactive molecules as potential antiviral agents, we have focused on the synthesis of molecules that exhibit strong and preferential binding to douplex RNA.A series of polycationic ligands have
- McConnaughie, Adrian W.,Spychala, Jaroslaw,Zhao, Min,Boykin, David,Wilson, W. David
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p. 1063 - 1069
(2007/10/02)
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- STABILITY OF THE 1,4-BIS(2'-HALOETHYL)-1,4-DIAZABICYCLOYHEPTANE DICATION
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Certain derivatives of the 1,4-bis(2'-haloethyl-1,4-diazabicycloheptane dication system ranging from dibromide 2b to ethanesulfonate 2g were found to be quite stable under essentially neutral conditions.A very convenient synthesis of 1,4-bis(2'-chl
- Pettit, George R.,Gieschen, Donald P.,Pettit, William E.,Rawson, Thomas E.
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p. 217 - 221
(2007/10/02)
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