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- W2034117271 abstract "Four monocyclic precursors were assembled in the total synthesis of the proposed structure 1-A of (+)-tolyporphin A O,O-diacetate (X=Ac). Comparison of the spectroscopic data demonstrated that synthetic tolyporphin O,O-diacetate did not match the O,O-diacetate prepared from natural (+)-tolyporphin A (X=H), calling for a structural revision of this class of natural products. On the basis of a series of NMR experiments including synthetic intermediates, the structure of tolyporphin A is concluded to be 1-B, in which the configurations of quaternary centers C7 and C17 are opposite to those in the originally proposed structure." @default.
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- W2034117271 date "1999-04-01" @default.
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- W2034117271 title "Revised Structure of Tolyporphin A" @default.
- W2034117271 doi "https://doi.org/10.1002/(sici)1521-3773(19990401)38:7<926::aid-anie926>3.0.co;2-w" @default.
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