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Patent Searching and Data


Title:
PROCESS FOR PREPARING PYRIDINE-SUBSTITUTED AMINO KETAL DERIVATIVES
Document Type and Number:
WIPO Patent Application WO2004072026
Kind Code:
B1
Abstract:
The present invention relates to an efficient process for preparing derivatives of 1-(pyridinyl)-1, 1-dialkoxy-2-aminoethane of the formula (I), with which compounds of the formula (I) can be prepared in high purity and yield and in the form of the free base without isolating the acetylpyridine oxime of the formula (XI) which is a critical product from a safety point of view as a solid.

Inventors:
FLEMMING HANS-WOLFRAM
KORB GERHARD
MUELLER-LEHAR JUERGEN
WEBER WALTER
Application Number:
EP2004000640W
Publication Date:
November 18, 2004
Filing Date:
January 27, 2004
Export Citation:
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Assignee:
AVENTIS PHARMA DEUTSCHLAND GMBH
International Classes:
C07D213/51; C07D213/53; (IPC1-7): C07D213/50; C07D213/38; C07D213/51; C07D213/53
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