Substituted 2-vinyl-chromones and process for their preparation
申请人:Carlo Erba S. p. A.
公开号:US04143145A1
公开(公告)日:1979-03-06
Substituted 2-vinyl chromones are disclosed wherein the chromone ring has an alkoxy or alkenyloxy substituent in the 3 position. The compounds exhibit anti-allergy activity and can be used to treat allergic conditions.
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.