Arylmethylphosphonates and phosphonic acids useful as anti-inflammatory
申请人:The Upjohn Company
公开号:US05500417A1
公开(公告)日:1996-03-19
This invention provides a new use of acids, esters, and salts of arylmethylphosphonates of Formula I, ##STR1## or phosphonic acid derivatives of Formula II ##STR2## as anti-inflammatory and anti-arthritic agents. Representative compounds include 4-dodecyloxybenzylphosphonic acid dimethyl ester, (2-naphthalenylmethyl)phosphonic acid dimethyl ester, and ([1,1 '-biphenyl]-2-ylmethyl)phosphonic acid dimethyl ester. The invention also provides novel acids, esters, and salts of arylmethylphosphonic acid, phosphonic acid and derivatives.
acidic hydrolysis of α-hydroxybenzylphosphonates and a few related derivatives was monitored in order to determine the kinetics and to map the reactivity of the differently substituted phosphonates in hydrolysis. Electron-withdrawing substituents increased the rate, while electron-releasing ones slowed down the reaction. Both hydrolysis steps were characterized by pseudo-first-order rate constants. The