188066-79-7Relevant academic research and scientific papers
Enantioselective Total Synthesis of Mandelalide A and Isomandelalide A: Discovery of a Cytotoxic Ring-Expanded Isomer
Veerasamy, Nagarathanam,Ghosh, Ankan,Li, Jinming,Watanabe, Kazuhiro,Serrill, Jeffrey D.,Ishmael, Jane E.,McPhail, Kerry L.,Carter, Rich G.
, p. 770 - 773 (2016)
The total synthesis of mandelalide A and its ring-expanded macrolide isomer isomandelalide A has been achieved. Unexpected high levels of cytotoxicity were observed with the ring-expanded isomandelalide A with a rank order of potency: mandelalide A > isomandelalide A > mandelalide B. Key aspects of the synthesis include Ag-catalyzed cyclizations (AgCC's) to construct both the THF and THP rings present in the macrocycle, diastereoselective Sharpless dihydroylation of a cis-enyne, and lithium acetylide coupling with a chiral epoxide.
Asymmetric photocycloadditions with an optically active allenylsilane: Trimethylsilyl as a removable stereocontrolling group for the enantioselective synthesis of exo-methylenecyclobutanes
Shepard, Mary S.,Carreira, Erick M.
, p. 2597 - 2605 (2007/10/03)
Allenylsilanes undergo enantioselective intramolecular photocycloaddition reactions with enones and enoates to give adducts in 76-99% enantiomeric excess and 67-90% yield. The silyl-substituted exo-methylenecyclobutane products undergo protodesilylation t
