Using COc1ccc([C@H](C)N(CCC(C)(O)c2ccc(C3OCCCO3)cc2)C(=O)OC(C)(C)C)cc1 to produce COc1ccc([C@H](C)N2CCC(C)(c3ccc(C4OCCCO4)cc3)OC2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.