Phthalascidin, a synthetic antitumor agent with potency and mode of action comparable to ecteinascidin 743. Martinez EJ, Owa T, Schreiber SL, Corey EJ. Phthalascidin, a synthetic antitumor agent with potency and mode of action comparable to ecteinascidin 743. Proc Natl Acad Sci U S A. 1999;96(7):3496-501. Read more