Using CCOC(=O)C(=O)N(CCCOCC#Cc1cncs1)C(C)(C)C to produce CC(C)(C)N(CCCOCC#Cc1cncs1)C(=O)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.