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Yamanouchi Pharmaceutical Co Ltd
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Yamanouchi Pharmaceutical Co Ltd
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Application filed by Yamanouchi Pharmaceutical Co LtdfiledCriticalYamanouchi Pharmaceutical Co Ltd
Priority to JP28176ApriorityCriticalpatent/JPS5283776A/en
Publication of JPS5283776ApublicationCriticalpatent/JPS5283776A/en
PURPOSE: Dicyclo [11,3,0] hexadeca-3-ene derivatives of formula I (A is CO, group of formula II; R1 and R2 are H, 2-thienyl), which are novel in having 2-thienyl-methylidene group on the 16 position, such as (Z)-14α,16α-dihydroxy-8-oxo-10-[1'-(E-2'-thienylmethylidene)pentyl-1βH, 13αH-9-oxabicyclo[11,3,0] hexadeca-3-ene.