3-(acridin-9-ylamino)-N-[2-[2-chloroethyl(propyl)amino]ethyl]propanamide;4-N-(3-chloroacridin-9-yl)-1-N-(2-chloroethyl)-1-N-propylpentane-1,4-diamine;2-[2-chloroethyl(propyl)amino]ethyl 3-[(6-chloro-2-methoxyacridin-9-yl)amino]propanoate;2-[2-chloroethyl(propyl)amino]ethyl 3-[(3-chloro-4-methylacridin-9-yl)amino]propanoate;2-[2-chloroethyl(propyl)amino]ethyl 3-[(4-methoxyacridin-9-yl)amino]propanoate