苄氧基苯基部分是单胺氧化酶B(MAO-B),沙芬酰胺和司加吉林的高效,选择性和可逆抑制剂的常见结构。我们合成了在末端芳基单元上包含卤素取代基的4-(苄氧基)苯基和联苯-4-基衍生物。另外,我们修饰了胺基和联芳基连接单元之间的碳连接基。在合成的化合物中,12c作为竞争性抑制剂表现出最有效和选择性的MAO-B抑制作用(hMAO-B IC 50:8.9 nM;选择性比MAO-A高10,000倍)。另外,12c与著名的MAO-B抑制剂(例如司来吉兰,沙芬酰胺和sembragiline)相比,具有更高的MAO-B抑制活性和选择性。在MPTP诱发的帕金森氏病(PD)小鼠模型中,12c可显着保护酪氨酸羟化酶(TH)免疫阳性DAergic神经元,并减轻与PD相关的行为缺陷。这项研究表明,作为MAO-B抑制剂的特征结构可能为PD治疗药物的开发提供很好的见识。
A simple method was developed for selective para-cyanation of alkoxy- and benzyloxy-substituted benzenes with 0.5 equivalents of potassium ferricyanide, 0.8 equivalants of copper(II) nitrate and 0.5 equivalents of iodine in acetonitrile. Among various phenyl carbon-hydrogen bonds, those at the para-position with regard to the alkoxy or benzyloxy groups were selectively cyanated in 20% to 87% yields
A compound represented by the formula below:
wherein R is selected from the group consisting of benzyl, C
3-11
alkyl, C
3-11
alkenyl, C
2-9
branched alkenyl, C
3-9
branched alkyl, and —CH
2
OAc.
investigated in vitro for their abilities to inhibitselectively rat brain monoamineoxidase (MAO) B over MAO A. Most of them were MAO Binhibitors and those bearing a substituted 4-(arylmethoxy)phenyl group in the position 5 of the tetrazole ring had IC50 values between 8 microM for 18d and 2 nM for 16a (30 nM for lazabemide) with a selectivity toward MAO B of 37,000 for 16a. The reversibility of their
Room-Temperature, Transition-Metal-Free Arylation of Alcohols with Aryl Bromides
作者:Yanqing Wang、David J. Young、Hong-Xi Li、Da-Liang Zhu、Jie Li、Qi Wu
DOI:10.1055/a-1932-6146
日期:2023.2
Sodium tert-butoxide promotes the efficient etherification of alcohols with aryl bromides at room temperature. This simple procedure has a broad substrate scope, providing a practical pathway to arylalkyl ethers in good yields without the addition of any transitionmetal species.
Diaryl compounds and pharmaceutical formulations containing them
申请人:THE WELLCOME FOUNDATION LIMITED
公开号:EP0028305A1
公开(公告)日:1981-05-13
Known and novel compounds of formula (I)
wherein Ar are the same or different and each is a substituted or unsubstituted phenyl group and
Z is a bond, sulphur, -CHOH, or -C=O; and
X is oxygen, sulphur, -CH2 or -NH- when Y is -CH2; or
X is -CH2 when Y is oxygen; or
X - Y together is -CH=CH, are active against viruses, especially rhinoviruses. Methods for producing the compounds are described, as are pharmaceutical formulations and methods for administering the compounds to cure or prevent rhinoviral infections.
已知和新型的式(I)化合物
其中 Ar 相同或不同,且各为取代或未取代的苯基,以及
Z 是键、硫、-CHOH 或 -C=O;以及
当 Y 为-CH2 时,X 为氧、硫、- 或-NH-;或
当 Y 是氧时,X 是- ;或
X-Y合起来是-CH=CH,对病毒,特别是鼻病毒有活性。本文介绍了生产这些化合物的方法,以及使用这些化合物治疗或预防鼻病毒感染的药物制剂和方法。