Using CC1(C)OB(c2cn[nH]c2)OC1(C)C, COS(=O)(=O)OCC1(COCc2ccccc2)COC1 to produce CC1(C)OB(c2cnn(CC3(COCc4ccccc4)COC3)c2)OC1(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.