Using Nc1nc(O)c2ncn(COCCO)c2n1, CC[C@H](C)[C@H](NC(=O)OCc1ccccc1)C(=O)O to produce CCOC(=O)[C@@H](NC(=O)OCc1ccccc1)[C@@H](C)CC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.