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Three new dibenzocyclooctadiene lignans named (-)-gomisin K1 (1) and (+)-gomisins K2 (2) and K3 (3) were isolated from the fruits of Schizandra chinensis BAILL. (Schizandraceae). Their structures were elucidated on the basis of chemical and spectral studies.
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Ikeya et al. (1980) studied this question.
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