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Priority to BG8414388ApriorityCriticalpatent/BG50329A1/en
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
The method is used for the synthesis of intermediate products of "β"-lactamases inhibitors, applied in medicine. It is technologically easy to realize and the products obtained thereof have high purity. With this method, the penicillanic acid is dissolved in an organic solvent in the proportion of 1:1 and 1 mol of 30 percent hydrogen peroxide is added at a temperature of about 0 degree C.
BG8414388A1988-05-131988-05-13A process for the preparation of the s-sulphfoxide of the penicillanic acid
BG50329A1
(en)
Process for the production of new tiophenecarbonic acid esthers of amino-alcoholes, their quaterner derivatives and of medical preparations containing them as active agents