PROCESS METHOD FOR SYNTHESIZING QUINOLONES INTERMEDIATES BY USE OF A MICROREACTOR

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United States of America Patent

APP PUB NO 20240092726A1
SERIAL NO

18123356

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Abstract

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The present disclosure discloses a method for synthesizing quinolones intermediates by a continuous flow reaction. Specifically, according to the method, a microchannel reactor is used, which improves the selectivity and conversion rate of the reaction, and the conversion rate of compound ii is increased to more than 95% and the yield is increased to more than 85%; avoids the use of a solvent such as methanol, and methyl tert-butyl ether, etc., in the intermittent reaction process, which simplifies the post-processing method, shortens the overall operation time from about 24 hours to a few minutes, greatly improving the production efficiency, and realizing the continuity and automation of the whole process; and thus makes the product have high purity and high yield, which is suitable for industrial production.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG MEDICINE CO LTD XINCHANG PHARMACEUTICAL FACTORYZHEJIANG 312500
ZHEJIANG CHANGHAI PHARMACEUTICALS CO LTD312000 ZHIYUAN ZHONGDAO 188 BINHAI NEW TOWN SHAOXING CITY ZHEJIANG PROVINCE SHAOXING CITY ZHEJIANG PROVINCE 312000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
CHEN, Junwei Shaoxing, CN 11 15
CHEN, Long Shaoxing, CN 393 1067
FAN, Gang Shaoxing, CN 13 285
GONG, Yunxia Shaoxing, CN 1 0
LUO, Yuquan Shaoxing, CN 2 0
LV, Chunlei Shaoxing, CN 6 0
SHEN, Dadong Shaoxing, CN 6 0
SHENG, Li Shaoxing, CN 12 23
WU, Guofeng Shaoxing, CN 14 3
ZHAO, Lin Shaoxing, CN 123 822

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