New mustard prodrugs for antibody-directed enzyme prodrug therapy: alternatives to the amide link.
J. Med. Chem. 1996 Mar 1; 39 (5): 1100-5.
Self-immolative anthracycline prodrugs for suicide gene therapy.
J. Med. Chem. 1999 Jul 1; 42 (13): 2485-9.
Bioorg. Med. Chem. Lett. 2006 Jan 15; 16 (2): 252-6.