Using CCOC(=O)C[C@H](Cc1csc(CCCCNc2cc(N3CCOCC3)ccn2)n1)c1ccc2c(c1)OCO2 to produce O=C(O)C[C@H](Cc1csc(CCCCNc2cc(N3CCOCC3)ccn2)n1)c1ccc2c(c1)OCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.