Desonide Impurity 1

Chemical Name: Desonide unknown Impurity (RRT 0.68); (2R)-2-hydroxy-2-((6aR,7S,8aS,8bR,11aR)-7-hydroxy-6a,8a,10,10-tetramethyl-4-oxo-1,2,4,6a,6b,7,8,8a,11a,12,12a,12b-dodecahydro-8bHnaphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-8b-yl)acetic acid;

Synonym: N-(6-carboxy-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)-N-((S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)-L-alanyl-L-proline