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Ind Quimica Agropecuaria S A
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Ind Quimica Agropecuaria S A
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Priority to ES516733ApriorityCriticalpatent/ES8308861A1/es
Priority to AT0212883Aprioritypatent/AT382370B/de
Publication of ES516733A0publicationCriticalpatent/ES516733A0/es
Publication of ES8308861A1publicationCriticalpatent/ES8308861A1/es
Un procedimiento para la preparacion de acido 7&-metoxi-7b( 4-metilen sustituido-1,3-ditietan-2-il)carboxamido-3-hete- ro-ciclotiometil-3-cefem-4-carboxilico.