Substituted pyrazoles, methods of manufacturing them, compositions containing them, and methods of using them to treat, for example, autoimmune diseases mediated by cathepsin S are described.
Disclosed compounds of general formula (1)
wherein
L, Q
1
, Q
2
, X, Y, R
a
, R
b
, R
c
, R
1
, R
2
, R
3
and R
4
are defined as in claim 1, which are suitable for the treatment of diseases characterised by excessive or abnormal cell proliferation, and the use thereof for preparing a pharmaceutical composition with the above-mentioned properties.
Process for the preparation of aryl ketones generating reduced amounts of toxic byproducts
申请人:College of the Holy Cross
公开号:US06362375B1
公开(公告)日:2002-03-26
An efficient, cost-effective method useful for the production of aryl ketones that minimizes the generation of toxic byproducts is disclosed. The method utilizes a metal triflate salt to catalyze the reaction between the carboxylic acid substrate and the aromatic substrate. The water generated by the reaction is collected and removed during the process.