Using CC(C)(C)OC(=O)NCC(=O)O, CCOC(=O)CC1OB(O)c2cc(Oc3nnc(N)s3)cc(C)c21 to produce CCOC(=O)CC1OB(O)c2cc(Oc3nnc(NC(=O)CNC(=O)OC(C)(C)C)s3)cc(C)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.