| 摘要 |
Prostaglandin compounds of the formula: <IMAGE> VII wherein A represents a grouping of formula II, III or IV indicated below and (i)R1 represents an unsubstituted n-butyl, n-pentyl, n-hexyl or n-heptyl radical, or such a radical carrying one, two or three alkyl substituents of 1 to 4 carbon atoms, or R1 represents a methyl, ethyl, propyl or butyl radical carrying a phenyl, cyclohexyl or cyclopentyl substituent, R2 represents a hydrogen atom or an alkyl radical of 1 to 4 carbon atoms, and R3 represents a hydrogen atom, or (ii) R1 represents n-butyl, or n-butyl or n-pentyl carrying one, two or three alkyl substituents of 1 to 4 carbon atoms, or R1 represents a methyl, ethyl, propyl or butyl radical carrying a phenyl, cyclohexyl or cyclopentyl substituent, R2 represents a hydrogen atom or an alkyl radical of 1 to 4 carbon atoms, and R3 represents an alkyl radical of 1 to 4 carbon atoms are disclosed. These compounds exhibit characteristic prostaglandin-like activity.
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