Using COC(OC)OC, Nc1ccc(Cl)cc1Nc1nc(-c2ccncc2)c2[nH]c(=O)n(C3CCOCC3)c2n1 to produce O=c1[nH]c2c(-c3ccncc3)nc(-n3cnc4ccc(Cl)cc43)nc2n1C1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.