One-pot synthesis of cinnamic anhydrides from cinnamic acids and 6-chloro-2,4-dimethoxy-<i>sec</i>-triazine (CDMT) at room temperature
作者:Gabriel Charles Edwin Raja、Yujeong Son、Myungjin Kim、Sunwoo Lee、Jonghoon Oh
DOI:10.1080/00397911.2017.1382535
日期:2017.12.17
ABSTRACT Symmetric cinnamic anhydrides were prepared by the reactions of cinnamic acid substrates with 6-chloro-2,4-dimethoxy-sec-triazine. The reactions were performed at room temperature for 15 h. Diverse cinnamic acid substrates bearing electron-withdrawing or -donating groups worked well, providing the corresponding cinnamic anhydrides in moderate-to-good yields GRAPHICAL ABSTRACT
14β-<i>O</i>-Cinnamoylnaltrexone and Related Dihydrocodeinones are Mu Opioid Receptor Partial Agonists with Predominant Antagonist Activity
作者:H. Moynihan、A. R. Jales、B. M. Greedy、D. Rennison、J. H. Broadbear、L. Purington、J. R. Traynor、J. H. Woods、J. W. Lewis、S. M. Husbands
DOI:10.1021/jm8012272
日期:2009.3.26
14-O-Cinnamoyl esters of naltrexone (6) were synthesized and evaluated in isolated tissue assays in vitro and in vivo in mouse antinociceptive assays. Their predominant opioid receptor activity was mu receptor (MOR) antagonism, but the unsubstituted cinnamoyl derivative (6a) had partial MOR agonist activity in vitro and in vivo. When compared to the equivalent 14-cinnamoylaminomorphinones (5), the cinnamoyloxy morphinones (6) as MOR antagonists had a shorter duration of action and were less effective as pseudoirreversible antagonists. The antinociceptive activity of the cinnamoyloxycodeinones (7) was not significantly greater than that of the morphinones (6), but they exhibited no evidence of any pseudo irreversible MOR antagonism. In both respects, these profiles differed from those of the equivalent 14-cinnamoylaminocodeinones (4).