摘要:
N-Sulfonylated and N-alkylated carprofen derivatives were investigated for their inhibition and modulation of gamma-secretase, which is associated with Alzheimer's disease. The introduction of a lipophilic substituent transformed the COX-2 inhibitor carprofen into a potent gamma-secretase modulator. Several compounds (e.g., 9p, 11f) caused selective reduction of A beta(42) and an increase of A beta(38). The most active compounds displayed activities in the low micromolar range and no effect on the gamma-secretase cleavage at the epsilon-site.