Standards; Steroids; Pharmaceutical/API Drug Impurities/Metabolites;
应用:
(11β,16α)-21-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-11,16,17-trihydroxy-pregna-1,4-diene-3,20-dione is an intermediate in the synthesis of 16α-Butyloxyprednisolone (B693880). 16α-Butyloxyprednisolone (Budesonide EP Impurity I) is an impurity of Budesonide (B689460), a non-halogenated glucocorticoid intended for the local treatment of lung disease.