Using O=c1[nH]c2c(c(=O)n1Cc1ccccc1)CN(Cc1ccccc1)CC2 to produce O=c1[nH]c2c(c(=O)n1Cc1ccccc1)CNCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.