Methylprednisolone 17, 21-disuccinate

Chemical Name: 4-(2-((6S,8S,9S,10R,13S,14S,17R)-17-((3-carboxypropanoyl)oxy)-11-hydroxy-6,10,13-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethoxy)-4-oxobutanoic acid

Smile: O=C1C=C[C@@]2(C)C([C@@H](C)C[C@]3([H])[C@]2([H])C(O)C[C@@]4(C)[C@@]3([H])CC[C@@]4(C(COC(CCC(O)=O)=O)=O)OC(CCC(O)=O)=O)=C1