Using CCOC(C)=O, CCCn1c(=O)c2[nH]c(C3(N)CCCC3)nc2n(CCC)c1=O to produce CCCn1c(=O)c2[nH]c(C3(NC(=O)OCC)CCCC3)nc2n(CCC)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.