Using [Li]CCCC, COC(=O)C(=O)c1cc2c(cc1OC)CCC(=O)N2C to produce C=C(C(=O)OC)c1cc2c(cc1OC)CCC(=O)N2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.