Using CCOC(=O)c1cnn(Cc2ccc3c(c2)N(CCOC)CCC3)c1 to produce COCCN1CCCc2ccc(Cn3cc(C(=O)O)cn3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.