Using COc1ccc(-c2c(-c3cccc(C)n3)nn3c2CCC3)cc1 to produce Cc1cccc(-c2nn3c(c2-c2ccc(O)cc2)CCC3)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.