research on the plant metabolitepulchrol, a natural benzochromene which has been shown to possess antiparasitic activity against Trypanosoma and Leishmania species. In a recent study, we investigated how changes in the benzyl alcohol functionality affected the antiparasitic activity, but the importance of B- and C-ring substituents is not understood. Fifteen derivatives of pulchrol with different substituents
被忽视的热带病影响热带国家的大多数贫困人口。其中包括恰加斯病和利什曼病,主要存在于南美洲和中美洲、非洲和东亚。目前的治疗时间长且具有严重的副作用,因此迫切需要开发替代方案。在这项研究中,我们的研究基于植物代谢物 pulchrol,这是一种天然苯并色烯,已被证明对锥虫和利什曼原虫具有抗寄生虫活性。在最近的一项研究中,我们研究了苯甲醇功能的变化如何影响抗寄生虫活性,但 B 环和 C 环取代基的重要性尚不清楚。pulchrol 的 15 种衍生物,在 1、2、3 和 6 位具有不同的取代基,同时保持 A 环完整,因此,通过全合成制备、测定并与 pulchrol 和阳性对照进行比较。生成的系列和亲本分子在体外测试了对克氏锥虫、巴西利什曼原虫和亚马逊乳杆菌的抗寄生虫活性,以及使用 RAW 细胞的细胞毒性。观察到合成的化合物活性存在显着差异,其中一些化合物比阳性对照苯并硝唑对克氏锥虫更有效。一般的趋势是烷基取代基提高效力,尤其是当位于
6-phenyl-pyridin-2-ylamine derivatives
申请人:Pfizer Inc.
公开号:US06235747B1
公开(公告)日:2001-05-22
The present invention relates to certain 6-phenyl-pyridin-2-ylamine derivatives that exhibit activity as nitric oxide synthase (NOS) inhibitors, to pharmaceutical compositions containing them and to their use in the treatment and prevention of central nervous system disorders.
[EN] NOVEL VIRAL REPLICATION INHIBITORS<br/>[FR] NOUVEAUX INHIBITEURS DE RÉPLICATION VIRALE
申请人:UNIV LEUVEN KATH
公开号:WO2011015641A1
公开(公告)日:2011-02-10
The present invention relates to a series of novel compounds having antiviral activity, more specifically HIV (Human Immunodeficiency Virus) replication inhibiting properties. The invention also relates to methods for the preparation of such compounds, as well as to novel intermediates useful in one or more steps of such syntheses. The invention also relates to pharmaceutical compositions comprising an effective amount of such compounds as active ingredients. This invention further relates to the use of such compounds as medicines or in the manufacture of a medicament useful for the treatment of animals suffering from viral infections, in particular HIV infection. This invention further relates to methods for the treatment of viral infections in animals by the administration of a therapeutical amount of such compounds, optionally combined with one or more other drugs having antiviral activity.
Enantioselective palladium catalyzed conjugate additions of ortho-substituted arylboronic acids to β,β-disubstituted cyclic enones: total synthesis of herbertenediol, enokipodin A and enokipodin B
作者:Jeffrey Buter、Renée Moezelaar、Adriaan J. Minnaard
DOI:10.1039/c4ob01085j
日期:——
Palladium catalyzed asymmetric conjugate addition of ortho-substituted arylboronic acids to cyclic enones and its application in natural product synthesis.
钯催化的手性共轭加成,将邻位取代的芳基硼酸加到环状烯酮上,并在天然产物合成中的应用。
Chiral Vanadium(V)-catalyzed Oxidative Coupling of 4-Hydroxycarbazoles
作者:Ganesh T. Kamble、Mohamed S. H. Salem、Tsukasa Abe、Hanseok Park、Makoto Sako、Shinobu Takizawa、Hiroaki Sasai
DOI:10.1246/cl.210367
日期:2021.10.5
Enantioselective oxidative couplings of 4-hydroxycarbazoles using a chiral dinuclear vanadium(v) complex have been achieved for the first time. Under the mild reaction conditions, the corresponding dimeric 4-hydroxycarbazoles were obtained in up to 90% ee.
首次实现了使用手性双核钒 (v) 配合物对 4-羟基咔唑进行对映选择性氧化偶联。在温和的反应条件下,得到了高达 90% ee 的相应二聚体 4-羟基咔唑。