发明名称 |
PROCESS FOR THE PREPARATION OF LH-RH DERIVATIVES |
摘要 |
<p>A process for the preparation of LH-RH derivatives, characterized by subjecting a solution of an LH-RH derivative to both treatment with a synthetic methacrylic resin adsorbent and that with a synthetic aromatic resin adsorbent. According to this process, the formation of by-product impurities including racemates of LH-RH derivatives can be suppressed and such impurities can be effectively removed, which enables the production of LH-RH derivatives having extremely high quality. Further, the process attains satisfactory purification effectively through the two treatment steps and can give LH-RH derivatives efficiently in high yields by easy operations not involving troublesome solid-liquid separation.</p> |
申请公布号 |
EP1207167(A1) |
申请公布日期 |
2002.05.22 |
申请号 |
EP20000942386 |
申请日期 |
2000.06.29 |
申请人 |
TAKEDA CHEMICAL INDUSTRIES, LTD. |
发明人 |
SASAKI, YASUHIRO;SHIMIZU, KATSUJI |
分类号 |
C07K7/23;(IPC1-7):C07K7/00 |
主分类号 |
C07K7/23 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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