ES446532A1 - Procedure for the obtaining of derivatives of the phenoxyactic acid. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the obtaining of derivatives of the phenoxyactic acid. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Merck Patent GmbH
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Merck Patent GmbH
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Publication date
Priority claimed from DE2312344Aexternal-prioritypatent/DE2312344A1/en
Priority claimed from DE19732319642external-prioritypatent/DE2319642A1/en
Application filed by Merck Patent GmbHfiledCriticalMerck Patent GmbH
Publication of ES446532A1publicationCriticalpatent/ES446532A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Procedure for obtaining phenoxyacetic acid derivatives of general formula I **(See formula)** where R1 signifies H or R2 signifies H, or in case R4 signifies the group Q, also A, R3 signifies methyl, ferulo or chlorophenyl, R4 signifies Q, A represents alkyl with 1-4 carbon atoms and Q represents 4- chromanyl, 4-thiocroManyl or 1-phenyl-1,2,3,4-t8trahydro-4-quinolyl, as well as their physiologically compatible salts, characterized in that a compound of general formula II **(See formula)** where Y means O, S or NC6H5 and, R1, R2 and R3 have the meaning indicated above, it is treated with a reducing agent, and because, optionally, in a compound obtained of formula I the residue R1 by treatment with esterifying agents, or solvolizers, is transformed into another R1 moiety and/or a compound obtained from formula I by treatment with acids or bases is transformed into its physiologically compatible addition salts of either metal or ammonia, and/or a compound of formula I get rid of one of its salts by treatment with a base or an acid. (Machine-translation by Google Translate, not legally binding)
ES446532A1973-03-131976-03-31Procedure for the obtaining of derivatives of the phenoxyactic acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES446532A1
(en)
Procedure for the preparation of N- (r-tetrahydrofurfuril) -noroximorphone and N- (s-tetrahydrofurfuril) -norosimorphone new. (Machine-translation by Google Translate, not legally binding)
Method of production of new benciliden-amino-oxy carboxylic acids and derivatives of carboxylic acid. (Machine-translation by Google Translate, not legally binding)