90705-86-5

Upstream product

• 473-72-3 (1'R,3'R)-2-(3'-acetyl-2',2'-dimethylcyclobutyl)acetic acid 
• 17879-35-5 cis-pinonic acid 
• 6331-04-0 2,4-dimethylphenylacetic acid 

Downstream Products

• 103-29-7 1,1'-(1,2-ethanediyl)bisbenzene 
• 24942-82-3 trans-1-phenyl-2-(2',4'-dimethylphenyl)-ethylene 
• 27650-76-6 (+/-)-1-[2.4]xylyl-propanol-⁽²⁾ 
• 854224-97-8 (+/-)-α'-hydroxy-2.4-dimethyl-bibenzyl 
• 136432-40-1 4-(2-chlorophenyl)-6,8-dimethyl-3-(2,4-dimethylphenyl acetylamino)quinoline 
• 143301-49-9 2-(2,4-dimethylphenyl)-1-phenylethan-1-one 
• 143819-02-7 4-[1-(2,4-Dimethyl-benzylcarbamoyl)-3,3-diethyl-4-oxo-azetidin-2-yloxy]-benzoic acid 

Relevant academic research and scientific papers

Quinolones as gonadotropin releasing hormone (GnRH) antagonists: Simultaneous optimization of the C(3)-aryl and C(6)-substituents

A series of 3-arylquinolones was prepared and evaluated for their ability to act as gonadotropin releasing hormone (GnRH) antagonists. A variety of substitution patterns of the 3-aryl substituent are described. The 3,4,5-trimethylphenyl substituent (23h) was found to be optimal. (C) 2000 Elsevier Science Ltd. All rights reserved.

Orally Active β-Lactam Inhibitors of Leukocyte Elastase-1. Activity of 3,3-Diethyl-2-azetidinones

A thorough analysis of the mechanism of inhibition of human leukocyte elastase (HLE) by a monocyclic β-lactam and the mechanism of β-lactam hydrolysis led to the preparation of potent and highly stable inhibitors of HLE.This work led to the identification of 4--3,3-diethyl-1-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.