69691-19-6Relevant articles and documents
PROSTACYCLIN DERIVATIVES
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Page/Page column 63-64, (2011/02/24)
This invention relates to novel prostacyclin derivatives and acceptable salts thereof. The invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions benefic
Synthesis of 5,6,7-trinor-4,8-inter-m-phenylene PGI2 and Beraprost
Wakita, Hisanori,Matsumoto, Kazuhisa,Yoshiwara, Hideo,Hosono, Yutaka,Hayashi, Ryoji,Nishiyama, Hisao,Nagase, Hiroshi
, p. 2449 - 2474 (2007/10/03)
We have disclosed a new class of stable PGI2 analogue, 5,6,7-trinor- 4,8-inter-m-phenylene PGI2 which has a phenyl ether moiety instead of enol- ether skeleton in PGI2. The m-phenylene PGI2 and its derivative (Betaprost) were synthesized via dihydrocyclopenta[b]benzofuran derivatives as key intermediates by ortho-selective metal-halogen exchange reaction with Grignard reagents and subsequent copper-catalyzed cyclization. The ω-side chains were introduced by stereoselective epoxide formation or Prins reaction.