Using O=C1COC(=O)C1, COc1cc(N)c(C(=O)c2cc(OC)c(O)c(OC)c2)cc1OC to produce COc1cc2nc3c(c(-c4cc(OC)c(O)c(OC)c4)c2cc1OC)C(=O)OC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.