Using CCOC(=O)CC1OB(O)c2cc(Oc3ccnc(NCc4cc(OC)ccc4OC)n3)cc(C)c21 to produce COc1ccc(OC)c(CNc2nccc(Oc3cc(C)c4c(c3)B(O)OC4CC(=O)O)n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.