289666-88-2Relevant academic research and scientific papers
Efficient synthesis of syringolides, secosyrins, and syributins through a common approach
Varvogli, Anastasia-Aikaterini C.,Karagiannis, Ioannis N.,Koumbis, Alexandros E.
experimental part, p. 1048 - 1058 (2009/04/10)
A new common synthetic approach toward the elicitors syringolides and their related natural products, secosyrins and syributins, is described here. This uses d-arabinose as starting material and efficiently delivers the targeted compounds through a sequen
Total synthesis of (+)-mycalamide A
Kagawa, Natsuko,Ihara, Masataka,Toyota, Masahiro
, p. 875 - 878 (2007/10/03)
A convergent total synthesis of (+)-mycalamide A is described. A Yb(OTf)3-TMSCl catalytic system is used to synthesize a trioxadecalin ring system, which contains the right segment of mycalamide A. In addition, a tetrahydropyran ring, which is
A short and efficient preparation of enantiopure secosyrins 1 and 2
Koumbis, Alexandros E.,Varvogli, Anastasia-Aikaterini C.
, p. 3340 - 3342 (2008/09/18)
An alternative, short and efficient approach for the preparation of enantiopure secosyrins 1 and 2 is reported here. This uses a D-arabinose derivative as starting material and applies a HWE-IHMA s trategy for the construction of the spiro-framework of ta
Convergent total synthesis of (+)-mycalamide A
Kagawa, Natsuko,Ihara, Masataka,Toyota, Masahiro
, p. 6796 - 6805 (2007/10/03)
The details of a convergent total synthesis of (+)-mycalamide A are descri7bed. Yb(OTf)3-TMSCl-catalyzed cross-aldol reaction conditions are used to synthesize the right segment of mycalamide A. In this reaction, an acid-sensitive aldehyde reacts with methyl trimethylsilyl dimethylketene acetal without epimerization to provide the desired aldol adduct. Additionally, a tetrahydropyran ring, which is the left segment of mycalamide A, is prepared using a novel one-pot δ-lactone formation methodology. Both segments are constructed from a common starting material, D-mannitol. These segments are then coupled in the presence of BuLi, and the functional groups are transformed to complete the synthesis of (+)-mycalamide A.
A stereoselective synthesis of the C-10 to C-18 (right-half) fragment of mycalamides employing lewis acid promoted intermolecular aldol reaction.
Toyota,Hirota,Hirano,Ihara
, p. 2031 - 2034 (2007/10/03)
[reaction: see text] Beginning with D-mannitol, a stereoselective synthesis of the right-half segment of the mycalamides has been accomplished by employing Lewis acid catalyzed intermolecular aldol reaction and oxypalladation as the key steps.
