2,6-Disubstituted N-arylsulfonyl piperidines as γ-secretase inhibitors
摘要:
A novel piperidine series of gamma-secretase inhibitors, potentially useful for the treatment of Alzheimer's disease, is disclosed. SAR investigation revealed the requirement for cis-stereochemistry of the substituents attached to the core, which resulted in the chair-like diaxial conformation of the piperidine ring. The series was optimized to provide inhibitors with IC(50)'s in the single-digit nanomolar range. Absolute stereochemistry of the active enantiomer was assigned. (c) 2006 Elsevier Ltd. All rights reserved.
Several stericallyhindered primary and secondary alcohols are efficiently converted into the corresponding phenylsulfides by using Bu3P-PhSSPh systemunderhighpressure conditions.