Using CCOC(=O)c1c(C)nn2c(C)cccc12, OC1CN2CCC1CC2 to produce Cc1nn2c(C)cccc2c1C(=O)OC1CN2CCC1CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.