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Fujisawa Pharmaceutical Co Ltd
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Fujisawa Pharmaceutical Co Ltd
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Application filed by Fujisawa Pharmaceutical Co LtdfiledCriticalFujisawa Pharmaceutical Co Ltd
Publication of ES473269A1publicationCriticalpatent/ES473269A1/es
Un procedimiento para preparar compuestos de cefem de la fórmula: **(Fórmula)** en la que R1 es amino o amino protegido, R2 es hidrógeno, halógeno o hidroxi, R3 es carboxi o carboxi funcionalmente modificado, y A2 es alcohileno inferior sustituido con un grupo de la fórmula: N-O-R4 en la cual R4 es hidrógeno, alcohilo inferior, alquenilo inferior, alquinilo inferior o cicloalcohilo, o su sal farmacéuticamente aceptable no tóxica.
ES473269A1977-10-111978-09-12Un procedimiento para preparar un compuesto de cefem
ExpiredES473269A1
(es)