Titlebook: Natural Product Synthesis I; Targets, Methods, Co J. Mulzer Book 2005 Springer-Verlag Berlin Heidelberg 2005 Alcaloids.chemistry.natural pr

arthroscopy

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Hla461

Total Syntheses of Kelsoene and Preussin,.]decane skeleton. It contains six stereogenic centers the selective construction of which has been addressed differently in the five syntheses known to date. Three syntheses employ an intermolecular [2+2]-photocycloaddition reaction as key step. One synthesis is based on a homo-Favorskii rearrangem

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,Enantioselective Synthesis of C(8)-Hydroxylated Lignans—Early Approaches and Recent Advances,tic strategies. The early approaches to optically active α-hydroxylated lignans involved the use of chiral auxiliaries or were based on the stereoselective α-oxygenation of lactone lignan enolates. Most recently compounds from the pool of chiral building blocks, such as sugars or malic acid, became

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