View Patent / 2002 Process for the preparation of flumethasone and its 17-carboxyl-androstene analog WO 2002100878
View Patent / 1989 Rhodium hydrogenation catalysts particularly for stereoselective hydrogenation of methacycline to doxycycline EP 283616
View Patent / 1989 Rhodium-containing hydrogenation catalysts for the conversion of methacycline to doxycycline EP 283615
View Patent / 1982 Water-soluble complexes of .alpha.-6-deoxy-5-hydroxytetracycline and sodium tetrametaphosphate and their use GB 2088864
View Patent / 1978 Alkali metal polymetaphosphate complexes of hydroxytetracycline.alpha.-6-deoxy-5- PT 54708