- Synthetic process of 4-ampyrone product
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The invention provides a synthetic process of a 4-ampyrone product, which comprises the following steps of: preparing antipyrine and sulfuric acid with concentration of 40 to 60% into solution; enabling the solution and sodium nitrite solution to simultaneously flow into a nitrosation reactor, controlling flow rates of the solution and the sodium nitrite solution, and controlling a reaction temperature to be 45 to 50 DEG C; performing a reaction with stirring; testing a reaction endpoint by iodine powder and starch test paper to regulate a water flow rate; enabling nitroso antipyrine generated by nitrosation to immediately flow into a reducing pot to react with a reducing agent ammonium hydrogen sulfite prepared in the pot and aqueous solution of ammonium sulfite; carrying out sampling and measuring a pH value and a reduction degree; heating to a temperature of 90 to 100 DEG C; after hydrolysis, cooling to a temperature of 80 to 85 DEG C; neutralizing to pH of 7 to 7.5 by liquid ammonia; carrying out standing and layering. The process provided by the invention is simple, convenient to operate and high in yield.
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Paragraph 0008-0010
(2017/07/12)
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- PYRAZOLONE DERIVATIVE HAVING CYCLIC SIDE CHAIN
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PROBLEM TO BE SOLVED: To provide a compound that has excellent inhibitory action on ATPase activity of TIP48/TIP49 complex and is therefore useful for the treatment of tumor, or a pharmacologically acceptable salt thereof. SOLUTION: The present invention provides a compound having a structure represented by general formula (I), its pharmacologically acceptable salt, or a pharmaceutical composition comprising the compound (where R1, R2, R3, R4, R5, R6, R7, W, and Z are as defined in the specifications). SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT
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Paragraph 0363; 0364
(2016/10/08)
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- AMINOPYRAZOLONE DERIVATIVE
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The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which has an excellent inhibitory action on the ATPase activity of a TIP48/TIP49 complex and as such, is useful for the treatment of tumors. [Solution] The present invention provides a compound having a structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, R2, R3, R4, R5, R6, R7, and W are as defined in the present specification.
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Paragraph 0240
(2017/01/05)
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