101166-65-8Relevant articles and documents
A concise synthesis of the pentacyclic framework of cortistatins
Yamashita, Shuji,Iso, Kentaro,Hirama, Masahiro
, p. 3413 - 3415 (2008)
(Chemical Equation Presented) An efficient synthesis of the pentacyclic framework of cortistatins has been developed. The key strategy comprises assembly of the A- and the CD-ring fragments by Knoevenagel reaction, facile formation of the pyran ring via e
Cyclic ethers as educts for the synthesis of lepidoptra pheromones
Poleschner,Heydenreich,Martin
, p. 1231 - 1235 (1991)
ω-Iodo(trialkylsiloxy)alkanes 2 prepared by ring opening of cyclic ethers with iodotrimethylsilane, are useful starting materials for the synthesis of pheromone components. Reaction with triphenylphosphine to give the corresponding Wittig reagent and subsequent coupling with lithium (Z)-dihex-1-enylcuprate gives (Z)-alken-1-ols 5 and 7, after deprotection, in good yields. The direct coupling of 2 with alkynes failed because of competition reactions, however, the more stable ω-iodo-1-(tert-butyldimethylsiloxy)alkanes were able to undergo C,C-coupling with alkynes. The thus formed 1-(tert-butyldimethylsiloxy)-5-decyne (13c) was hydrogenated and deprotected to give (E)-5-decen-1-ol (15c).
COMPOUNDS AS INHIBITORS OF MACROPHAGE MIGRATION INHIBITORY FACTOR
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Paragraph 081, (2020/09/27)
The present invention provides compounds of Formula (I) shown above and their pharmaceutically acceptable salt, solvates, isomers, or prodrugs, as well as pharmaceutical compositions containing these compounds. Also provided by the invention is a method for treating a disorder mediated by macrophage migration inhibitory factor in a subject, comprising administering to the subject in need thereof a compound or a pharmaceutical composition of this invention.
Evolution of a Polyene Cyclization Cascade for the Total Synthesis of (?)-Cyclosmenospongine
Speck, Klaus,Magauer, Thomas
supporting information, p. 1157 - 1165 (2017/02/05)
We report a full account on the development of a unique cationic polyene cyclization for the total synthesis of the tetracyclic meroterpenoid (?)-cyclosmenospongine. A highly convergent three-component coupling strategy enabled rapid access to individual cyclization precursors that were tested for their reactivity. The successful transformation generates three rings and sets four consecutive stereocenters in a single operation proceeding in a highly efficient manner to give exclusively the trans-decalin framework. In addition, we found that the enol ether geometry and the relative configuration of C3 and C8 are crucial for the success of the polyene cyclization.