E. Sugino et al., SYNTHESIS OF A NEW POTENT ANTI-ANGIOGENIC AGENT, -ACETOXY-9-ALPHA-FLUORO-6-ALPHA-METHYLPROGESTERONE (9-ALPHA-FLUOROMEDROXYPROGESTERONE ACETATE [FMPA]), Chemical and Pharmaceutical Bulletin, 45(2), 1997, pp. 421-423
A new anti-angiogenic agent, 17 alpha-acetoxy-9 alpha-fluoro-6 alpha-m
ethylprogesterone (9 alpha-fluoromedoroxyprogesterone acetate [FMPA, 9
]) was synthesized in a 10-step sequence. FMPA (9) had about two order
s of magnitude stronger antiangiogenic activity than medroxyprogestero
ne acetate (MPA), as estimated in a bioassay involving chorioallantoic
membranes of growing chick embryos.