Using CCCOc1ccc(F)c2c(=O)c(-c3ccc(OC)cc3)cn(COC(=O)CNCC(=O)OC(C)(C)C)c12 to produce CCCOc1ccc(F)c2c(=O)c(-c3ccc(OC)cc3)cn(COC(=O)CNC)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.