Reactions of β-aroylacrylic acids with N-nucleophiles
作者:R. Dj. Khachikyan、N. V. Karamyan、H. A. Panosyan、M. H. Injikyan
DOI:10.1007/s11172-006-0068-7
日期:2005.8
Reactions of NH2OH·HCl with β-aroylacrylicacids proceed ambiguously: a nucleophile attacks either the carbonyl group or the C=C bond. In the latter case, the resulting α-hydroxyl-amino derivative converts into enamine, probably via dehydration followed by isomerization. Addition of 1,2,4-triazole to the C=C bond of β-(p-toluyl)acrylic acid followed by refluxing of their adduct with 60% NH2NH2·H2O
Disclosed are compounds of the formula
1
wherein the variables R
N
, R
C
, R
1
, R
25
, R
2
, and R
3
are as defined herein. These compounds have activity as inhibitors of beta-secretase and are therefore useful in treating a variety of discorders such as Alzheimer's Disease.