159305-15-4Relevant articles and documents
Br?nsted acid/rhodium(II) cooperative catalytic asymmetric three-component aldol-type reaction for the synthesis of 3-amino oxindoles
Ren, Lei,Lian, Xiao-Lei,Gong, Liu-Zhu
supporting information, p. 3315 - 3318 (2013/07/11)
Cooperation is key! Chiral Br?nsted acid/rhodium(II) cooperative catalysis enabled an enantioselective three-component aldol-type reaction of 3-diazo oxindoles and anilines with glyoxylates to give highly functionalized and structurally diverse 3-amino oxindoles in high stereoselectivity (>20:1 d.r., 99 % ee; see scheme). Copyright
QUINAZOLINE DERIVATIVES AS PDE10A ENZYME INHIBITORS
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Page/Page column 44; 45, (2013/04/24)
This invention is directed to compounds, which are PDE10A enzyme inhibitors. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. The pr
Highly stereoselective chemoenzymatic synthesis of the 3 h -isobenzofuran skeleton. access to enantiopure 3-methylphthalides
Mangas-Sanchez, Juan,Busto, Eduardo,Gotor-Fernandez, Vicente,Gotor, Vicente
supporting information; experimental part, p. 1444 - 1447 (2012/06/01)
A straightforward synthesis of (S)-3-methylphthalides has been developed, with the key asymmetric step being the bioreduction of 2-acetylbenzonitriles. Enzymatic processes have been found to be highly dependent on the pH value, with acidic conditions being required to avoid undesired side reactions. Baker's yeast was found to be the best biocatalyst acting in a highly stereoselective fashion. The simple treatment of the reaction crudes with aqueous HCl has provided access to enantiopure (S)-3-methylphthalides in moderate to excellent yields.