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CAS No. : | 94695-52-0 | MDL No. : | MFCD01173812 |
Formula : | C13H8F3NO3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | NMASXYCNDJMMFR-UHFFFAOYSA-N |
M.W : | 283.20 | Pubchem ID : | 535414 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In methanol; water; dimethyl sulfoxide; | STR27 2.8 g (0.01 mole) of 1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid (Example A) are heated to 140 C. together with 1.8 g (0.011 mole) of <strong>[85803-49-2]2-(2-thienyl)piperazine</strong> and 2.2 g (0.02 mole) of 1,4-diazobicyclo[2.2.2]octane in 6 ml of DMSO for 2 hours. The mixture is concentrated under high vacuum, the residue is stirred with 20 ml of water, and the precipitate is filtered off with suction and boiled in 20 ml of methanol. 2.4 g (56% of theory) of 1-cyclopropyl-6,8-difluoro-1,4-dihydro-4-oxo-7-[3-(2-thienyl)-1-piperazinyl]-3-quinolinecarboxylic acid of melting point 252-254 C. (with decomposition) are obtained. The melting point remains unchanged after recrystallization from glycol monomethyl ether. |
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