Using CSc1ncc2cc(-c3cc(C(=O)O)ccc3C)c(=O)n(C)c2n1, NC1CC1 to produce CSc1ncc2cc(-c3cc(C(=O)NC4CC4)ccc3C)c(=O)n(C)c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.