Using CSc1c(O)ccc2[nH]ncc12, CC(C)(C)OC(=O)N1CCCC(O)CC1 to produce CSc1c(OC2CCCN(C(=O)OC(C)(C)C)CC2)ccc2[nH]ncc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.