Using CCOC(=O)CC1OB(O)c2cc(Oc3nnc(N)s3)cc(Cl)c21 to produce Nc1nnc(Oc2cc(Cl)c3c(c2)B(O)OC3CC(=O)O)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.