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Sintesis de 11,12-hidrogenoortoborato de 9-desoxo-9a-aza-11,12-desoxi-9a-metil-9a-homoeritromicina a. un procedimiento para la preparacion de 9-desoxo-9a-aza-9a-metil-9a-homoeritromicina a dihidrato (azitromicina dihidrato).
Procedimento di fermentazione a stadio unico per la preparazione di acido 9-idrossi-3-osso-4,17(20)-pregnadien-20-carbossilico,utile come intermedio per la produzione di sterroidi