Using C=C(OCC)[Sn](CCCC)(CCCC)CCCC, Clc1ccc2nnc(C3(c4ccc5ncccc5c4)CC3)n2n1 to produce CC(=O)c1ccc2nnc(C3(c4ccc5ncccc5c4)CC3)n2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.