5-[(3,4-Dihydrospiro[2H-1-benzopyran-2,1'-cycloheptan])-6-ylmethyl]thiazolidine-2,4-dione C??? ??, ??, ??

5-[(3,4-Dihydrospiro[2H-1-benzopyran-2,1'-cycloheptan])-6-ylmethyl]thiazolidine-2,4-dione ?? ?? ? ???

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5-[(3,4-Dihydrospiro[2H-1-benzopyran-2,1'-cycloheptan])-6-ylmethyl]thiazolidine-2,4-dione ?? ??