The present invention is directed to a compound represented by the following structural formula: or a pharmaceutically acceptable salt thereof. Pharmaceutical composition comprising a compound represented by Structural Formula (I) and method of use of these compound for inhibiting BACE activity in a subject in need of such treatment are also described.
The present invention is directed to a compound represented by the following structural formula:
or a pharmaceutically acceptable salt thereof. Pharmaceutical composition comprising a compound represented by Structural Formula (I) and method of use of these compound for inhibiting BACE activity in a subject in need of such treatment are also described.
Enantioselective Nickel-Catalyzed α-Spirocyclization of Lactones
作者:Allison M. Stanko、Melissa Ramirez、Adrian J. de Almenara、Scott C. Virgil、Brian M. Stoltz
DOI:10.1021/acs.orglett.4c01661
日期:2024.8.16
Herein we report a strategy for the enantioselectivesynthesis of spirocycles containing all-carbon quaternary centers via nickel-catalyzed intramolecular addition of lactone enolates to aryl nitriles. The established lactone α-spirocyclization efficiently and enantioselectively forges 5-, 6-, and 7-membered rings, performing best in the synthesis of 7-membered rings (up to 90% ee). This discovery