Using O=c1[nH]c2cc([N+](=O)[O-])ccc2c(=O)n1CCCCN1CC=C(c2ccccc2)CC1 to produce O=c1[nH]c2cc(NO)ccc2c(=O)n1CCCCN1CC=C(c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.