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Patent Searching and Data


Title:
NEW CANCEROUS CELL METASTATIC SUPPRESSOR 6-@(3754/24)TRIFLUOROACETAMIDO)-4,5-DIHYDROXYPIPERIDINE-3-CARBOXYLIC ACID AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3242472
Kind Code:
B2
Abstract:

PURPOSE: To obtain a new low toxic compound, having water-solubility and useful as a cancerous cell metastatic suppressor.
CONSTITUTION: (3S,4S,5R,6R)-6-(Trifluoroacetamino)-4,5-dihydroxypiperdine-3- carboxylic acid of formula I and its salts. This compound is obtained by oxidizing a compound of formula II [R1 is H or imino-protecting group; X1 and X2 are hydroxyl-protecting group, etc.; R2 is lower alkyl, aralkyl, etc.; (x) is S- configuration; (y) is R-configuration; (z) is R,S-configuration] or a mixture of the compound of formula II with a compound of formula III with oxygen in the presence of palladium chloride and cuprous chloride, providing a compound of formula IV [(w) is S-configurationl and then releasing the ester-forming group (R2) and further the imino-protecting group (R1) and hydroxyl-protecting groups (X1 and X2). The compound of formula I is capable of extremely remarkably suppressing the diffusion and metastasis of a cancerous cell and usable together with the existing carcinostatic agent.


Inventors:
Nishimura, Yoshio
Kudo, Toshiaki
Kondo, Shinichi
Takeuchi, Tomio
Application Number:
JP33214392A
Publication Date:
December 25, 2001
Filing Date:
November 19, 1992
Export Citation:
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Assignee:
Microbial, Chem Res Found
MECT CORP
MEIJI SEIKA KAISHA LTD
International Classes:
A61K31/445; A61K31/7012; A61P35/00; A61P35/04; C07D211/60; C07D211/74; C07H7/02; (IPC1-7): C07H7/02; A61K31/7012; A61P35/04
Attorney, Agent or Firm:
八木田 茂 (外2名)