68471-57-8Relevant articles and documents
Fragment-oriented synthesis: β-elaboration of cyclic amine fragments using enecarbamates as platform intermediates
Trindade, Alexandre F.,Faulkner, Emily L.,Leach, Andrew G.,Nelson, Adam,Marsden, Stephen P.
, p. 8802 - 8805 (2020/08/17)
A strategy for the β-sp3 functionalisation of cyclic amines is described. Regioselective conversion of protected amines to enecarbamates is achieved through electrochemical oxidation; these intermediates can be derivatised by functionalised alkyl halides under photoredox catalysis. The potential of the methods is highlighted by direct growth of a DCP2B-binding fragment. This journal is
Chiral multi-substituted 4 - hydroxy chroman compound and its preparation method and application
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Paragraph 0286; 0288, (2017/07/01)
The invention discloses a chiral polysubstituted 4-hydroxychroman compound, and a preparation method and application thereof. The compound has a general structural formula as shown in a formula I which is described in the specification. The preparation method comprises a step of subjecting a salicylaldehyde compound as shown in a general structural formula II and a tertiary alkenyl amide as shown in a general structural formula III to an intermolecular nucleophilic tandem reaction in the presence of a chiral Lewis acid catalyst so as to realize high-efficiency high-selectivity preparation of the chiral polysubstituted 4-hydroxychroman compound. According to the method, the raw material alkenyl amide which can be easily prepared on large scale and the cheap and easily available chiral catalyst are used, and the novel chiral polysubstituted 4-hydroxychroman bicyclo derivative product which cannot be synthesized by using other methods is prepared under mild reaction conditions; and the produce has a stable structure, high yield and enantioselectivity and good application prospects and can be easily separated and purified.
A total synthesis of millingtonine a
Wegner, Jens,Ley, Steven V.,Kirschning, Andreas,Hansen, Anne-Lene,Montenegro Garcia, Javier,Baxendale, Ian R.
supporting information; experimental part, p. 696 - 699 (2012/04/17)
A total synthesis of millingtonine A, a diglycosylated alkaloid, has been accomplished. Millingtonine A possesses a unique racemic tricyclic core structure not known from any other natural or synthetic source until now. The synthesis features a key bond-f