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ASYMMETRIC SYNTHESIS OF DIHYDROBENZOFURAN DERIVATIVES.
ASYMMETRIC SYNTHESIS OF DIHYDROBENZOFURAN DERIVATIVES.
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机译:双苯并呋喃衍生物的不对称合成。
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摘要
This invention concerns a process for the preparation of benzofuran derivatives.In some aspects, these compounds are of formula I: wherein each of R', R2,R3, and R4 is as defined herein.
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