ChemInform Abstract: Highly Efficient Sy
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L. F. TIETZE; H. SCHIROK
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Article
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2010
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John Wiley and Sons
β 30 KB
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Highly Efficient Synthesis of Cephalotaxin by Two Palladium-Catalyzed Cyclizations. -The racemic intermediate (V) is converted with 75% yield by known procedures in 4 steps into the alkaloid cephalotaxin (VI), the parent compound of the antileukemic harringtonines. -(TIETZE,