Using CCOC(=O)CC=Cc1c2n(c3ccc(OC)nc13)Cc1ccccc1-2 to produce COc1ccc2c(n1)c(CCCC(=O)O)c1n2Cc2ccccc2-1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.