Using CCOC(=O)CC(c1ccccc1)n1ccc2cc(OCCONC(=N)N)ccc21 to produce N=C(N)NOCCOc1ccc2c(ccn2C(CC(=O)O)c2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.