Using CCOC(=O)c1c2c(nn1CCO)-c1nc(SC)ncc1CCC2 to produce CSc1ncc2c(n1)-c1nn3c(c1CCC2)C(=O)OCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.