OXAMIC ACID DERIVATIVE AND MEDICAL COMPOSITION

Title:

OXAMIC ACID DERIVATIVE AND MEDICAL COMPOSITION

Document Type and Number:

Japanese Patent JPS557290

Kind Code:

A

Abstract:

Compounds of the formula wherein R1 is hydrogen or alkyl of 1 to 4 carbon atoms; R2 is hydrogen, methyl or carboxyl; and A is pyridyl, benzodioxanyl or where R3, R4 and R5, which may be identical to or different from each other, are each hydrogen, hydroxyl, alkoxy, alkyl, halogen, carboxyalkyl or nitro, or one of R3, R4 or R5 is dialkylamino, carboxamido, morpholino, piperidino, hydroxy-piperidino, cyano or phenyl; non-toxic salts thereof formed with an inorganic base when R1 is hydrogen and/or R2 is carboxyl; and non-toxic addition salts thereof formed with an organic base when R1 is hydrogen. The compounds are useful as antiallergics.

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Inventors:

FURIIDORITSUHI KAARU HESU
PATORITSUKU BURAIAN SUCHIYUWAA
JIEEMUSU TOOMASU ORIBAA

Application Number:

JP8062879A

Publication Date:

January 19, 1980

Filing Date:

June 26, 1979

Export Citation:

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Assignee:

BOEHRINGER SOHN INGELHEIM

International Classes:

A61K31/425; A61K31/426; A61K31/427; A61K31/44; C07D277/20; A61K31/445; A61K31/535; A61P11/00; A61P17/00; A61P37/08; C07D277/40; C07D277/46; C07D407/04; C07D417/04; C07D417/10; (IPC1-7): A61K31/425; A61K31/44; C07D277/44; C07D417/04

Domestic Patent References:

JPS552684A

1980-01-10

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