Using O=Cc1ccccc1, COC(=O)c1[nH]c(-c2ccccc2)c(N)c1C(=O)OC to produce COC(=O)c1[nH]c(-c2ccccc2)c(N=Cc2ccccc2)c1C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.