Using COc1ccc(-c2n[nH]c3c2Cc2sc(-c4ccc(N)nc4)cc2-3)cc1 to produce Nc1ccc(-c2cc3c(s2)Cc2c(-c4ccc(O)cc4)n[nH]c2-3)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.