Discovery of small molecular (d)-leucinamides as potent, Notch-sparing γ-secretase modulators
摘要:
Structural optimization of the prior lead 3 led to the small molecular (D)-leucinamides with potent modulating activity and Notch-sparing selectivity on the proteolytic processing of amyloid-beta precursor proteins. The N-(R)-epoxypropyl analog 10c exhibited potent gamma-secretase modulation compared to DAPT and showed substantial substrate selection for APP cleavage over Notch cleavage, while N-(2-fluoro) benzyl analog 10e showed the most potent gamma-secretase inhibition with dull selectivity. The exceptional suppression of ERIK-mediated activation suggested that these potent gamma-secretase modulators may adapt an alternative pathway to prominently induce the differential inhibition of C99 cleavage by gamma-secretase. (C) 2014 Elsevier Masson SAS. All rights reserved.