Using CCOC(=O)[C@H]1CC[C@H](CNC(=O)N2CCC3(CC2)OC(=O)c2ccccc23)CC1 to produce O=C1OC2(CCN(C(=O)NC[C@H]3CC[C@H](C(=O)O)CC3)CC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.