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Updated: Aug 30, 2026

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A simple stereoselective synthesis and biological evaluation of FR181157: orally active prostacyclin mimetic
Kouji Hattori1, Seiichiro Tabuchi, Osamu Okitsu
1Medicinal Chemistry Research Laboratories, Fujisawa Pharmaceutical Co. Ltd, 1-6, Kashima 2-Chome, Yodogawa-Ku, Osaka, Japan. kouji_hattori@po.fujisawa.co.jp
Abstract:
Synthetic method of a novel prostaglandin (PG) mimetic: FR181175 without PG skeleton are described. The key to success is creation of a chiral epoxide using Sharpless AD reaction with high ee yield. FR181157 shows high potency and agonist efficacy at the IP receptor and has good bioavailability.
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