Orally active .beta.-lactam inhibitors of human leukocyte elastase-1. Activity of 3,3-diethyl-2-azetidinones
摘要:
A thorough analysis of the mechanism of inhibition of human leukocyte elastase (HLE) by a monocyclic beta-lactam and the mechanism of beta-lactam hydrolysis led to the preparation of potent and highly stable inhibitors of HLE. This work led to the identification of 4-[(4-carboxyphenyl)-oxy]-3,3-diethyl-1-[[(phenylmethyl)amino]carbonyl]-2-azetidinone (2) as the first orally active inhibitor of human leukocyte elastase (HLE). Analogs of 2 with different substituents on the urea N were synthesized and evaluated for their activity in vitro against HLE as well as in vivo in a hamster lung hemorrhage model. Compounds with a methyl or a methoxy group in the para position of the benzene ring were very potent in both assays. The results are discussed on the basis of the proposed model for the binding of this class of inhibitors to HLE and a possible mechanism of inhibition is presented.
Racemic fluoxetine was synthesized from 3-benzoylpropionic acid in five steps in 54% overall yield.
外消旋氟西汀由 3-苯甲酰丙酸分五步合成,总产率为 54%。
Orally active .beta.-lactam inhibitors of human leukocyte elastase-1. Activity of 3,3-diethyl-2-azetidinones
作者:Shrenik K. Shah、Conrad P. Dorn、Paul E. Finke、Jeffrey J. Hale、William K. Hagmann、Karen A. Brause、Gilbert O. Chandler、Amy L. Kissinger、Bonnie M. Ashe
DOI:10.1021/jm00099a003
日期:1992.10
A thorough analysis of the mechanism of inhibition of human leukocyte elastase (HLE) by a monocyclic beta-lactam and the mechanism of beta-lactam hydrolysis led to the preparation of potent and highly stable inhibitors of HLE. This work led to the identification of 4-[(4-carboxyphenyl)-oxy]-3,3-diethyl-1-[[(phenylmethyl)amino]carbonyl]-2-azetidinone (2) as the first orally active inhibitor of human leukocyte elastase (HLE). Analogs of 2 with different substituents on the urea N were synthesized and evaluated for their activity in vitro against HLE as well as in vivo in a hamster lung hemorrhage model. Compounds with a methyl or a methoxy group in the para position of the benzene ring were very potent in both assays. The results are discussed on the basis of the proposed model for the binding of this class of inhibitors to HLE and a possible mechanism of inhibition is presented.
Abdel-Fattah, A. A.; Nasar, S. A.; El-Shenawy, A. I., Egyptian Journal of Chemistry, 2003, vol. 46, # 1, p. 153 - 162
作者:Abdel-Fattah, A. A.、Nasar, S. A.、El-Shenawy, A. I.