1 BRA 9-[4-(N,N-dimethylamino)phenylamino]-3,6-bis(3-pyrrolidinopropionamido) acridine 1.000 2 PYN 3-pyrrolidin-1-yl-N-[6-(3-pyrrolidin-1-yl-propionylamino)-acridin-3-yl]-propionamide 0.773 3 RNR 3,6-bis(3-(3'-(R)-fluoropyrrolindino)propionamido)acridine 0.739 4 SNS 3,6-bis(3-(3'-(S)-fluoropyrrolindino)propionamido)acridine 0.739