[CH:1]1[CH:2]=[CH:3][C:4]([NH:11][C:12]2[C:13]([Cl:19])=[CH:14][CH:15]=[CH:16][C:17]=2[Cl:18])=[C:5]([CH2:7][C:8]([OH:10])=[O:9])[CH:6]=1.[OH-].[Na+].O.O.O.O.O.O.[Cl-].[Sr+2:29].[Cl-]>O.C(O)C.O>[Sr:29].[CH:1]1[CH:2]=[CH:3][C:4]([NH:11][C:12]2[C:17]([Cl:18])=[CH:16][CH:15]=[CH:14][C:13]=2[Cl:19])=[C:5]([CH2:7][C:8]([OH:10])=[O:9])[CH:6]=1Diclofenac (0.35 g, 1.18 mmol) was dissolved in water/ethanol (30 ml, 50:50 (volume)) containing sodium hydroxide (24 mg, 0.59 mmol). A solution of strontium chloride hexahydrate (0.16 g, 0.59 mmol) in water (3 ml) was added. The mixture was stirred for 20 minutes, and the title compound was isolated by filtration and dried. Yield 0.122 g (15%).
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