发明名称 |
Verfahren zur Herstellung von Amikacin-Vorläufern. |
摘要 |
<p>Process for the preparation of a 3,6'-di-N-Acyl-1-[L-(-)-4-Acylamino-2-hydroxybutyryl] kanamycin A, wherein Acyl is a N-protecting acylating group, which comprises reacting kanamycin A with an aluminum salt in an inert organic solvent, treating the aluminum complex thus obtained with a N-acylating agent and acidifiying the reaction mixture, as such or after having removed the complexing aluminum in basic medium and isolated the 3,6'-di-N-Acyl-kanamycin A, to pH 6, treating the protonated 3,6'-di-N-Acyl-kanamycin A, in form of a salt thereof, with an active derivative of L-(-)-4-Acyl-amino-2-hydroxybutyric acid, wherein Acyl is a N-protecting group preferably identical with that which protects the amino groups in the positions 3 and 6' of kanamycin A, and isolating the product thus obtained by simple correction of the pH.</p> |
申请公布号 |
DE69104092(T2) |
申请公布日期 |
1995.01.26 |
申请号 |
DE1991604092T |
申请日期 |
1991.02.20 |
申请人 |
BIOCHIMICA OPOS S.P.A., VALLEAMBROSIA DI ROZZANO, MAILAND, IT |
发明人 |
DALL'ASTA, LEONE, I-27100 PAVIA, IT;GAREGNANI, EUGENIO, I-20010 MARCALLO CON CASONE, MILANO, IT |
分类号 |
C07H15/234;C07H15/236;C07H15/26;(IPC1-7):C07H15/236 |
主分类号 |
C07H15/234 |
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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