Specific inhibition of histone deacetylase 8 (HDAC8) has been suggested as a promising option for the treatment of neuroblastoma and T‐cell malignancies. A novel class of highly potent and selective HDAC8inhibitors with a pyrimido[1,2‐c][1,3]benzothiazin‐6‐imine scaffold was studied that is completely different from the traditional concept of HDACinhibitors comprising a zinc binding group (ZBG), in most
已建议对组蛋白脱乙酰基酶8(HDAC8)的特异性抑制是治疗神经母细胞瘤和T细胞恶性肿瘤的有前途的选择。研究了一种新型的高效和选择性HDAC8抑制剂,该抑制剂具有嘧啶并[1,2- c ] [1,3]苯并噻嗪-6-亚胺骨架,与包含锌结合基团的传统HDAC抑制剂概念完全不同( ZBG),在大多数情况下可能与目标蛋白表面相互作用的异羟肟酸酯基团,间隔基和封端基团。尽管缺少ZBG,但一些新化合物显示出对HDAC8的出色效价(单位为几纳摩尔)。嘧啶基[1,2- c] [1,3]苯并噻嗪-6-亚胺也抑制实体瘤和血液肿瘤细胞的生长。新型HDAC抑制剂类别的小尺寸和有益的理化性质突显了高度的药物相似性。这种和广泛的结构-活性关系表明,将具有嘧啶并[1,2- c ] [1,3]苯并噻嗪-6-亚胺骨架的化合物进一步开发为创新的高效抗癌药物的巨大潜力。
[EN] SELECTIVE HDAC8 INHIBITORS AND THEIR USES<br/>[FR] INHIBITEURS DE HDAC8 SÉLECTIFS ET LEURS UTILISATIONS
申请人:HOCHSCHULE DARMSTADT
公开号:WO2017077008A1
公开(公告)日:2017-05-11
The present invention relates to small molecule compounds based on benzopyrimido- or benzoimidazo-thiazin-imine as well as their (synthesis) intermediates and their use as HDAC inhibitors, in particular HDAC8 inhibitors. The present invention also relates to the use of said compounds in the treatment of cancer and as therapeutic agents for eukaryotic parasites and respective methods of treatment.
heterocyclic-imidazoline compounds have been prepared and evaluated in vitro as imidazoline sites (I1 and I2) and alpha-adrenergic (alpha1 and alpha2) receptor ligands. Their pKi values indicate that linkage of the imidazoline moiety at the 2-position with an aromatic substituent dramatically decreases alpha-adrenergic affinity. I1 sites are more accessible by phenyl imidazolines substituted by a methyl or a methoxy
least HDAC isoenzyme selective inhibitors. In addition, hydroxamates have recently come under discussion regarding their potential for mutagenicity. Recently, PD-404,182 was discovered as a selective and potent non-hydroxamate inhibitor of HDAC8. However, this active compound turned out to be decomposed in the presence of glutathion (GSH). Here, we describe the synthesis of significantly improved analogs