Using C1=CC2(CCN(CCCCN3CCC4(C=Cc5ccccc54)CC3)CC2)c2ccccc21 to produce c1ccc2c(c1)CCC21CCN(CCCCN2CCC3(CCc4ccccc43)CC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.