Using COCn1c(=O)c2c(c3ccc(Cc4nnn[nH]4)cc31)NCCC2 to produce O=c1[nH]c2cc(Cc3nnn[nH]3)ccc2c2c1CCCN2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.