DIHYDROFURAN CHALCONE COMPOUND AND PREPARATION METHOD THEREOF

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United States of America

APP PUB NO 20210332022A1
SERIAL NO

16626943

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Abstract

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A method for preparing a dihydrofuran chalcone includes the following steps: subjecting a Morus alba leaf to extraction with an aqueous solution of methanol or ethanol having a volume fraction of 40%-100%, concentrating an extract to remove methanol or ethanol and dissolving in water, subjecting to extraction with petroleum ether and ethyl acetate successively, and concentrating an ethyl acetate extract to obtain a paste; chromatographing the paste over a silica gel column using chloroform-methanol, collecting an eluate where the volume ratio of chloroform-methanol is 95/5; chromatographing the eluate over a reversed-phase column using acetonitrile-water, collecting an eluate where the volume ratio of acetonitrile-water is 30/70, and thereby the dihydrofuran chalcone is obtained.

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SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCIENCESNO 723 XINGKE ROAD TIANHE DISTRICT GUANGZHOU CITY GUANGDONG PROVINCE 510000 GUANGZHOU CITY GUANGDONG PROVINCE 510000

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  • 2018 Application Filing Year
  • C07D Class
  • 5970 Applications Filed
  • 4247 Patents Issued To-Date
  • 71.14 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201820192020202120222023202420250255075100

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Inventor Name Address # of filed Patents Total Citations
JIANG, Yueming Guangzhou, CN 15 110
YANG, Bao Guangzhou, CN 22 41

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges4964194839101 - 1011 - 2021 - 300250500750100012501500175020002250250027503000325035003750400042504500475050005250

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