Beclomethasone Bromo Impurity

Chemical Name: 2-((9R,10S,11S,13S,16S,17R)-9-bromo-11-(formyloxy)-17-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate

Smile: C[C@@]12C(CCC3[C@]2(Br)[C@@H](OC([H])=O)C[C@@]4(C)C3C[C@H](C)[C@]4(O)C(COC(C)=O)=O)=CC(C=C1)=O