Using COC(=O)C(C=O)Cc1cnc(OC)nc1, Cc1cccc(Oc2ccc(CCOC(=N)N)cc2)n1 to produce COc1ncc(Cc2c[nH]c(OCCc3ccc(Oc4cccc(C)n4)cc3)nc2=O)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.