Using COC(=O)CCC(C)=O, COc1cccc(CC(=O)c2c(N)sc3c2CCCC3)c1 to produce COC(=O)Cc1c(C)nc2sc3c(c2c1Cc1cccc(OC)c1)CCCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.