| 摘要 |
An antidiabetic composition comprising as the active ingredient an isocarbacyclin derivative of the formula [I]: <CHEM> wherein R<1> is hydrogen atom, an alkyl group or one equivalent of cation; R<2> is hydrogen atom or methyl group; R<3> is a straight-chain or branched-chain alkyl, alkenyl or alkynyl group, a cycloalkyl, phenyl or phenoxy group which may be substituted, or a straight-chain or branched-chain alkyl group which is substituted by the above mentioned cycloalkyl, phenyl or phenoxy group which may be substituted; n is 0 or 1, provided that when R<3> is n-pentyl, R<2> is methyl or n is 1.
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