Nonpeptidic Inhibitors of Human Leukocyte Elastase. 6. Design of a Potent, Intratracheally Active, Pyridone-Based Trifluoromethyl Ketone
作者:Peter R. Bernstein、Bruce C. Gomes、Benedict J. Kosmider、Edward P. Vacek、Joseph C. Williams
DOI:10.1021/jm00001a028
日期:1995.1
Further modification of the 3-amino substituent in a trifluoromethyl ketone-based series of 3-amino-6-phenylpyridin-2-ones that had been optimized for oral activity led to analogs that were potent intratracheal inhibitors in a model of HLE-induced lung damage in the hamster. The best 3-amino substituent for intratracheal activity is [4-[N-[(4-chlorophenyl) sulfonyl]carbamoyl]phenyl]sulfonyl. At a 30 min prechallenge interval, compound 9, which incorporates this substituent, had an ED(50) of similar to 2 nmol/animal and, qualitatively, afforded a very similar dose-response relationship to that found with a peptidic trifluoromethyl ketone inhibitor, ICI 200,355.