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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Publication of ES382202A1publicationCriticalpatent/ES382202A1/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Abstract
A procedure for preparing derivatives of substituted phenoxycarboxylic acids of the formula **(See formula)** where R1 and R2 individually represent hydrogen or lower alcohol; A represents hydroxyl or alkoxy; and B represents cycloalkenyl, 2-benzothiazolyl or 2-benzoxazolyl, or their pharmaceutically acceptable salts, characterized in that it comprises reacting a phenolic derivative of the formula **(See formula)** where B is the same as defined above, with chloroform and a carbonyl compound of the formula **(See formula)** in which R1 and R2 are the same as defined above, in the presence of alkalis, or to react a phenolic derivative of the formula **(See formula)** where B is the same as defined above, with a carboxylic acid derivative of the formula **(See formula)** where R1, R2 and A are the same as defined above and X is halogen or hydroxyl and, in addition, if necessary, esterify or hydrolyze the obtained product. (Machine-translation by Google Translate, not legally binding)
ES382202A1969-08-011970-07-27
A PROCEDURE FOR PREPARING DERIVATIVES OF SUBSTITUTED PHENOXY-CARBOXYL ACIDS.
ExpiredES382202A1
(en)
Procedure for the preparation of new acids 4- (4 bifenilil) -4-hydroxy-butirrics, its esteres or lactonas. (Machine-translation by Google Translate, not legally binding)
New compounds constituted by the acid quinazolon-4-carboxilico-2, its salts, esters and other derivatives and its manufacturing procedure. (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture of ariloxi-isoalquilo-delta2-imidazolinas and its salts of additional acids (Machine-translation by Google Translate, not legally binding)