Stereoselective Total Synthesis of Proposed Structure of Stagonolide D
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چکیده
منابع مشابه
Stereoselective total synthesis of the putative structure of nitraraine.
After the structure originally proposed for nitraraine was shown to be incorrect by total synthesis, the alternative structure 5 was recently suggested for the alkaloid on biosynthetic grounds and by comparison with the (1)H NMR data of tangutorine. The unambiguous synthesis of 5 is reported from tryptophanol and ketodiester 6, via oxazoloquinolone lactam 7. However, the melting point and (1)H ...
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Introduction. – The 6-substituted 5,6-dihydro-2H-pyran-2-one A, an a,b-unsaturated d-lactone, is an important structural subunit in many biologically promising natural products. This unit is of interest for a wide variety of biological activities, such as insect-growth inhibitors and insect antifeedent, cytotoxic activities, and antifungal and antitumor properties [1]. The pyran units are widel...
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In a convergent approach to the marine natural product (þ)-norrisolide (1) the two bicyclic ring systems are coupled through the C9 C10 bond to assemble the carbon framework in a late stage of the synthesis. Other highlights of the synthetic strategy include the formation of the unusual fused g-lactone–g-lactol motif of 1 through a sequence of oxidation reactions. T. P. Brady, S. H. Kim, K. Wen...
متن کاملStereoselective total synthesis of (-)-cleistenolide.
A facile stereoselective total synthesis of cleistenolide (1) from the natural chiral template d-arabinose has been achieved in eight steps and 49% overall yield, employing key steps including Wittig olefination, selective 1,3-trans-acetal formation, and modified Yamaguchi esterification.
متن کاملStereoselective Total Synthesis of (+)-Dodoneine
SYNTHESIS 2010, No. x, pp 000A–000Exx.xx.2010 Advanced online publication: xx.xx.2010 DOI: 10.1055/s-0029-1218741; Art ID: P00610SS © Georg Thieme Verlag Stuttgart · New York Abstract: A total synthesis of the naturally occurring dihydropyranone dodoneine is reported. The combination of a highly catalytic enantioselective allylboration and a highly diastereoselective allylstannation was used fo...
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ژورنال
عنوان ژورنال: Organic Chemistry: Current Research
سال: 2018
ISSN: 2161-0401
DOI: 10.4172/2161-0401.1000186