Using CCC[Mg]Br, CCCC(=O)c1c(CC)nc2c(-c3c(C)cc(C)cc3OC)nccn12 to produce CCCC(O)(CCC)c1c(CC)nc2c(-c3c(C)cc(C)cc3OC)nccn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.