Novel Potent and Efficacious Nonpeptidic Urotensin II Receptor Agonists
摘要:
Six different series of nonpeptidic urotensin 11 receptor agonists have been synthesized and evaluated for their agonistic activity in a cell-based assay (R-SAT). The compounds are ring-opened analogues of the isochromanone-based agonist AC-7954 with different functionalities constituting the linker between the two aromatic ring moieties. Several of the compounds are highly potent and efficacious, with N-[1-(4-chlorophenyl)-3-(dimethylamino)-propyl]-4-phenylbenzamide oxalate (5d) being the most potent. The pure enantiomers of 5d were obtained from the corresponding diastereomeric amides. It was shown by a combination of X-ray crystallography and chemical correlation that the activity resides in the S-enantiomer of 5d (pEC(50) 7.49).
Design, synthesis and biological activity of a novel ethylenediamine derivatives as H1 receptor antagonists
作者:Shiyang Zhou、Gangliang Huang、Guangying Chen
DOI:10.1016/j.bmc.2019.115127
日期:2019.12
degranulation is IC50=0.0106±0.001 μmol.L-1, histamine release was IC50=0.0192±0.005 μmol.L-1 and β-hexosaminidase release was IC50=0.0455±0.002 μmol.L-1 in vitro. At the same time, in vivo biological activities assay results showed that have a good Histamie induce bronchospasm effect with relatively long duration and good protective effect in vivo, among which the protective effect of compound 5k was 79
Halogen bonding enhances activity in a series of dual 5-HT<sub>6</sub>/D<sub>2</sub> ligands designed in a hybrid bioisostere generation/virtual screening protocol
作者:Jakub Staroń、Dawid Warszycki、Rafał Kurczab、Grzegorz Satała、Ryszard Bugno、Adam Hogendorf、Andrzej J. Bojarski
DOI:10.1039/c6ra08714k
日期:——
Consequently, a series of derivatives of the found hit 1d (N-[2-(dimethylamino)ethyl]-N-(2-phenylethyl)aniline) was synthesized. The most active 5-HT6/D2 ligands also showed affinity for 5-HT7R and 5-HT2AR. The para-chloroaniline derivative was identified as a potent dual 5-HT6/5-HT7 receptor antagonist (Ki = 24 nM and Kb = 30 nM, Ki = 4 nM and Kb = 1.4 nM, respectively). In the case of halogen-containing
通过与在第二个靶标上具有活性的化合物的相似性相结合的化学空间变窄与化学空间缩小相结合的新型杂化生物等排体生成/虚拟筛选方法已成功地用于开发结构新的双5-HT 6 / D 2受体配体。因此,合成了所发现的命中1d的一系列衍生物(N- [2-(二甲基氨基)乙基] -N-(2-苯基乙基)苯胺)。最活跃的5-HT 6 / d 2点的配体也显示出对5-HT 7 R和5-HT 2A R的对位-chloroaniline衍生物被鉴定为一种有效的双重5-HT 6 /5-HT7受体拮抗剂( K i = 24 nM和K b = 30 nM, K i = 4 nM和K b = 1.4 nM)。对于含卤素的化合物,在5-HT 6,D 2和5-HT 7受体上观察到了有趣的结构-活性关系,随后使用结合了量子极化的分子模型方法研究了配体-受体复合物配体对接(QPLD)和分子力学通用出生/表面面积(MM / GBSA)自由能计算,可以确定假定的卤素结合口袋。
Aryl urea (thiourea) and cyanoguanidine derivatives
申请人:E. R. Squibb & Sons, Inc.
公开号:US05374643A1
公开(公告)日:1994-12-20
Novel compounds useful, for example, in the treatment of ischemic conditions and arrhythmia having the formula I ##STR1## wherein X is oxygen, sulfur or --NCN and the R groups are as defined herein.
Compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof wherein X is a single bond, O, CO, S, NH or N(lower alkyl); Y is O, S or NCN; and R.sup.1 to R.sup.5' are as defined herein. These compounds have potassium channel activating activity and are useful, therefore for example, as cardiovascular agents.
A greener improvement to direct mono-N-alkylation of aromatic amines by alkyl halides was achieved using microwave irradiation in water without any catalyst.