发明名称 |
DRYING OF CEFPODOXIME PROXETIL USING SATURATED LIQUID CARBON DIOXIDE |
摘要 |
A method for drying cefpodoxime proxetil is provided to obtain the cefpodoxime proxetil with almost no remaining solvent with reduced cost and drying time by performing a drying process using a saturated liquid CO2, which is relatively cheap, harmless to human body and non-reactive with a product. A method for drying cefpodoxime proxetil comprises a step of removing at least one remaining organic solvent selected from the group consisting of diisopropylether, ethyl acetate and dichloromethane by circulating saturated liquid carbon dioxide using a reboiler and a condenser without using a power unit such as a pump during a process of preparing the cefpodoxime proxetil.
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申请公布号 |
KR100840132(B1) |
申请公布日期 |
2008.06.23 |
申请号 |
KR20070037619 |
申请日期 |
2007.04.17 |
申请人 |
SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION |
发明人 |
CHU, JUN HO;SHIN, NAE CHUL;KIM, HWA YONG;LEE, YOUN WOO |
分类号 |
C07D501/59;B01D11/00 |
主分类号 |
C07D501/59 |
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