1122063-33-5Relevant articles and documents
Dual β2-adrenoceptor agonists-PDE4 inhibitors for the treatment of asthma and COPD
Shan, Wen-Jun,Huang, Ling,Zhou, Qi,Jiang, Huai-Lei,Luo, Zong-Hua,Lai, Ke-Fang,Li, Xing-Shu
, p. 1523 - 1526 (2012/04/04)
We designed and synthesized a novel class of dual pharmacology bronchodilators targeting both b2-adrenoceptor and PDE4 by applying a multivalent approach. The most potent dual pharmacology molecule, compound 29, possessed good inhibitory activity on PDE4B2 (IC50 = 0.278 μM, which was more potent than phthalazinone, IC50 = 0.520 lM) and possessed excellent relaxant effects on tracheal rings precontracted by histamine (pEC50 = 9.3).
ACETAMIDE STEREOISOMER
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Page/Page column 4-5, (2009/04/24)
The compound of formula (I)is a water-stable, long acting β2-selective adrenoceptor agonist useful as a bronchodilator in the treatment of bronchoconstriction associated with reversible obstructive airways diseases and the like.
Carbamate Stereoisomer
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Page/Page column 5, (2009/04/24)
The compound of formula (I) is a water-stable, long acting β2-selective adrenoceptor agonist useful as a bronchodilator in the treatment of bronchoconstriction associated with reversible obstructive airways diseases and the like.
Large-scale synthesis of enantio- and diastereomerically pure (R,R)-formoterol
Hett, Robert,Fang, Qun K.,Gao, Yun,Wald, Stephen A.,Senanayake, Chris H.
, p. 96 - 99 (2013/09/08)
(R,R)-Formoterol (1) is a long-acting, very potent β2-agonist, which is used as a bronchodilator in the therapy of asthma and chronic bronchitis. Highly convergent synthesis of enantio- and diastereomerically pure (R,R)-formoterol fumarate is achieved by a chromatography-free process with an overall yield of 44%. Asymmetric catalytic reduction of bromoketone 4 using as catalyst oxazaborolidine derived from (1R, 2S)-1-amino-2-indanol and resolution of chiral amine 3 are the origins of chirality in this process. Further enrichment of enantio- and diastereomeric purity is accomplished by crystallizations of the isolated intermediates throughout the process to give (R,R)-formoterol (1) as the pure stereoisomer (ee, de >99.5%).