Synthesis of new stable fluoroprostacyclins, 7-fluoro-2, 4-methylene-17, 20- dimethylprostacyclins (1, 2) with potent and long-lasting anti-anginal activities has been achieved. The cyclobutylene prostaglandin skeleton 10 was constructed efficiently according to three-component coupling reaction. Stereospecific fluorination of silyl ether 11 and subsequent cyclization of the fluoride 12 successfully provided the desired 7-fluoro-2, ...
[Lewis, David K.; Hutchinson, Avery; Lever, Steven J.; Spaulding, Eric L.; Bonacorsi Jr., Samuel J.; Baldwin, John E. Israel Journal of Chemistry, 1996 , vol. 36, # 3 p. 233 - 237]