Macrocyclic inhibitors of rhodesain (RD), a parasitic cysteine protease and drug target for the treatment of human African trypanosomiasis, have shown low metabolic stability at the macrocyclic ether bridge. A series of acyclic dipeptidyl nitriles was developed using structure-baseddesign (PDB ID: 6EX8). The selectivity against the closely related cysteine protease human cathepsin L (hCatL) was substantially
罗德沙星(RD)的大环抑制剂是一种寄生的半胱氨酸蛋白酶,是治疗人类非洲锥虫病的药物靶标,在大环醚桥处显示出较低的代谢稳定性。使用基于结构的设计(PDB ID:6EX8)开发了一系列无环二肽腈。对紧密相关的半胱氨酸蛋白酶人组织蛋白酶L(hCatL)的选择性大大提高,提高了507倍。在S2口袋中,3,4-二氯苯丙氨酸残基具有很高的锥虫杀虫活性。在S3袋中,芳族残基提供了增强的针对hCatL的选择性。布鲁氏罗氏锥虫的RD抑制(K i值)和体外细胞生长(IC 50在纳摩尔范围内测量。通过安全克级流量生产1 H -1,2,3-三唑-4羧酸乙酯获得的基于三唑的配体在人肝微粒体中表现出出色的代谢稳定性,体内半衰期高达1.53 h在小鼠中。当口服给予感染的小鼠时,寄生虫血症减少了,但没有完全清除寄生虫。
[EN] FUNGICIDAL OXADIAZOLES<br/>[FR] OXADIAZOLES À ACTIVITÉ FONGICIDE
申请人:FMC CORP
公开号:WO2018118781A1
公开(公告)日:2018-06-28
Disclosed are compounds of Formula 1, including all geometric and stereoisomers, tautomers, N-oxides, and salts thereof, wherein R1, A, and J are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling plant disease caused by a fungal pathogen comprising applying an effective amount of a compound or a composition of the invention.
[3+2] Cycloaddition of ruthenium azido complex with ethyl propiolate and related reactions
作者:Chao-Wan Chang、Ying-Chih Lin、Gene-Hsiang Lee、Yu Wang
DOI:10.1016/j.jorganchem.2018.01.049
日期:2018.4
ethyl propiolate with ruthenium azido complex [Ru]−N3 (1, [Ru] = (η5-C5H5)(dppe)Ru, dppe = Ph2PCH2CH2PPh2) has been investigated. The metal-bound heterocyclic complex produced is N(2)-bound triazolate [Ru]N3CHCO2Et (2). A regiospecific alkylation happens by treatment of 2 with organic halides and gives a series of cationic N(1)-bound N(3)-alkylated-4-ethoxycarbonyl triazolato complexes [Ru]N3(R)C2HCO2Et}[X]
The present invention provides a fused heterocyclic derivative having a potent kinase inhibitory activity and use thereof.
A compound represented by the formula (I):
wherein each symbol is as defined in the specification, except a particular compound, or a salt thereof, and a pharmaceutical agent containing the compound or a prodrug thereof, which is a kinase (VEGFR, VEGFR2, PDGFR, Raf) inhibitor, an angiogenesis inhibitor, an agent for the prophylaxis or treatment of cancer, a cancer growth inhibitor or a cancer metastasis suppressor.
Imidazopyridazine derivative having kinase inhibitory activity and pharmaceutical agent thereof
申请人:Takeda Pharmaceutical Company Limited
公开号:US08034812B2
公开(公告)日:2011-10-11
The present invention provides an imidazopyridazine derivative compound having a potent kinase inhibitory activity and a pharmaceutical agent thereof useful for treatment or prevention of cancer and the like. One such compound is represented by the formula:
or a salt thereof or a prodrug thereof. The pharmaceutical agent contains the imidazopyridazine derivative compound or a prodrug thereof, which is a kinase (VEGFR, VEGFR2, PDGFR, Raf) inhibitor, an angiogenesis inhibitor, an agent for the prophylaxis or treatment of cancer, a cancer growth inhibitor, or a cancer metastasis suppressor.