Using CCC(N)c1nc2snc(C)c2c(=O)n1Cc1ccccc1, CC(C)(CC=O)NC(=O)OC(C)(C)C to produce CCC(NCCC(C)(C)NC(=O)OC(C)(C)C)c1nc2snc(C)c2c(=O)n1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.