- Method for preparing 4-[17beta-methoxy-17alpha-methoxymethyl-3-oxestra-4,9-dien-11beta-yl]benzaldehyde (E)-oxime (asoprisnil)
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The present invention relates to a method for the reliable and reproducible preparation of 4-[17β-methoxy-17α-methoxymethyl-3-oxoestra-4,9-dien-11β-yl]benzaldehyde (E)-oxime (asoprisnil) on the pilot and manufacturing scale. Asoprisnil, which is prepared by this method, is distinguished by a very good physical stability and is therefore particularly suitable for the manufacture of solid pharmaceutical forms (tablets, coated tablets, etc.).
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Page/Page column 6
(2009/04/24)
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- METHOD FOR PREPARING 4-[17β-METHOXY-17α-METHOXYMETHYL-3-OXOESTRA-4,9-DIEN-11β-YL]BENZALDEHYDE (E)-OXIME (ASOPRISNIL)
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The present invention relates to a method for the reliable and reproducible preparation of 4-[17β-methoxy-17α-methoxymethyl-3-oxoestra-4,9-dien-llβ- yl]benzaldehyde (E)-oxime (asoprisnil) on the pilot and manufacturing scale. Asoprisnil, which is prepared by this method, is distinguished by a very good physical stability and is therefore particularly suitable for the manufacture of solid pharmaceutical forms (tablets, coated tablets, etc.).
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Page/Page column 18-19; Sheet 1/3
(2008/06/13)
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