Method for recovering moxidectin protector intermediate from crystallization mother liquor
The invention discloses a method for recovering a moxidectin protector intermediate from nemadectin protection intermediate crystallization mother liquor, which comprises the following process steps: firstly, carrying out reduced pressure concentration pretreatment on the crystallization mother liqu...
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| creator | LU CHUANG ZHOU GUOFEI HUANG CONGHAN CHEN GUO PANG WANYUAN WEN JUNXIAN |
| description | The invention discloses a method for recovering a moxidectin protector intermediate from nemadectin protection intermediate crystallization mother liquor, which comprises the following process steps: firstly, carrying out reduced pressure concentration pretreatment on the crystallization mother liquor, then extracting a concentrated solution, then carrying out column chromatography by using ion exchange resin, collecting an eluent, carrying out reduced pressure concentration on the eluent twice, and finally recovering the moxidectin protector intermediate from the nemadectin protection intermediate crystallization mother liquor. And crystallizing to obtain the moxidectin protector intermediate. According to the method, resourceful treatment of the crystallization mother liquor is achieved, the purity of the recycled product is high, meanwhile, the extracting agent, the eluent and the resin in the recycling process can be recycled, the cost is low, and the method is suitable for industrial production.
本发明公开了一种 |
| format | Patent |
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本发明公开了一种</description><subject>CHEMISTRY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNizEKwkAQRdNYiHqH8QBCgmhqCYqNVlY2Ydn8mIHdnTgZRT29KTyA1X_w3p9m1xOsk4ZaUVJ4eUI53SjKixt440S9io00ek4GjWjYGahVieT1PZgLgT_OWNJ4sw5Kge8P0Xk2aV0YsPjtLFse9pfquEIvNYbeeSRYXZ2LYlPmZZlvd-t_mi_oFDyd</recordid><startdate>20230221</startdate><enddate>20230221</enddate><creator>LU CHUANG</creator><creator>ZHOU GUOFEI</creator><creator>HUANG CONGHAN</creator><creator>CHEN GUO</creator><creator>PANG WANYUAN</creator><creator>WEN JUNXIAN</creator><scope>EVB</scope></search><sort><creationdate>20230221</creationdate><title>Method for recovering moxidectin protector intermediate from crystallization mother liquor</title><author>LU CHUANG ; ZHOU GUOFEI ; HUANG CONGHAN ; CHEN GUO ; PANG WANYUAN ; WEN JUNXIAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN115707706A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>CHEMISTRY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>LU CHUANG</creatorcontrib><creatorcontrib>ZHOU GUOFEI</creatorcontrib><creatorcontrib>HUANG CONGHAN</creatorcontrib><creatorcontrib>CHEN GUO</creatorcontrib><creatorcontrib>PANG WANYUAN</creatorcontrib><creatorcontrib>WEN JUNXIAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LU CHUANG</au><au>ZHOU GUOFEI</au><au>HUANG CONGHAN</au><au>CHEN GUO</au><au>PANG WANYUAN</au><au>WEN JUNXIAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for recovering moxidectin protector intermediate from crystallization mother liquor</title><date>2023-02-21</date><risdate>2023</risdate><abstract>The invention discloses a method for recovering a moxidectin protector intermediate from nemadectin protection intermediate crystallization mother liquor, which comprises the following process steps: firstly, carrying out reduced pressure concentration pretreatment on the crystallization mother liquor, then extracting a concentrated solution, then carrying out column chromatography by using ion exchange resin, collecting an eluent, carrying out reduced pressure concentration on the eluent twice, and finally recovering the moxidectin protector intermediate from the nemadectin protection intermediate crystallization mother liquor. And crystallizing to obtain the moxidectin protector intermediate. According to the method, resourceful treatment of the crystallization mother liquor is achieved, the purity of the recycled product is high, meanwhile, the extracting agent, the eluent and the resin in the recycling process can be recycled, the cost is low, and the method is suitable for industrial production.
本发明公开了一种</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY |
| title | Method for recovering moxidectin protector intermediate from crystallization mother liquor |
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