Using CCCCCCCCn1c2c(c3cc(-c4cccc(C)c4)ccc31)CN(C(=O)OCC)CC2 to produce CCCCCCCCn1c2c(c3cc(-c4cccc(C)c4)ccc31)CNCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.