| 摘要 |
Disclosed are compounds which inhibit beta -amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising a compound which inhibits beta -amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions. Said compounds are represented by formula (I), wherein R<1> is selected from the group consisting of: a) alkyl, alkenyl, alkaryl, alkcycloalkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl and heterocyclic; b) a substituted phenyl group of formula (II), wherein R is alkylene of from 1 to 8 carbon atoms, m is an integer equal to 0 or 1, and c) 1- or 2-naphthyl substituted at the 5, 6, 7 and/or 8 positions, R<2> is selected from the group consisting of hydrogen, alkyl of from 1 to 4 carbon atoms, alkylalkoxy of from 1 to 4 carbon atoms, alkylthioalkoxy of from 1 to 4 carbon atoms; and R<3> and R<3'> are independently selected from the group consisting of: (a) hydrogen, (b) alkyl, (c) -(R<7>)n(W)p, wherein R<7> is an alkylene group, W is selected from the group consisting of (i) formula (A); (ii) heteroaryl; and (iii) N-heterocyclic, and n is an integer equal to 0 or 1, and p is an integer equal to 1 to 3; (d) -CH( phi )CH2C(O)O-Q where Q is selected from the group consisting of alkyl, aryl, heteroaryl and heterocyclic; X' is hydrogen, hydroxy or fluoro; X'' is hydrogen, hydroxy or fluoro, or X' and X'' together form an oxo group, Z is selected from the group consisting of a bond covalently linking R<1> to -CX'X''-, oxygen and sulfur. |
