Using N=C(N)NC1CCCC1, CN(C)C=CC(=O)c1c(-c2ccncc2)nn2c(NC3CCCC3)cccc12 to produce CNc1nccc(-c2c(-c3ccncc3)nn3c(NC4CCCC4)cccc23)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.