Using O=C1CNCCN1Cc1ccccc1, CCOC=C(C(=O)OCC)C(=O)OCC to produce CCOC(=O)c1cn2c(c1O)C(=O)N(Cc1ccccc1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.