N-(5-((aryl or heteroaryl)methyloxy)pentyl)-substituted iminosugars as inhibitors of glucosylceramide synthase
申请人:ACADEMISCH MEDISCH CENTRUM
公开号:US10189784B2
公开(公告)日:2019-01-29
Deoxynojirimycin and deoxygalactonojirimycin derivatives according to the present invention are N-alkylated D-galacto, D-gluco- or L-ido-deoxynojirimycin with a linear methyloxypentyl group bearing various sidegroups and a non-fused bicyclic aromatic group (“X”) on the methyloxy-carbon. These compounds display an increased inhibitory potency towards GCS, and/or an increased inhibitory potency towards GBA2, and/or a decreased inhibitory potency towards GBA1, relative to known deoxynojirimycin derivatives of the same (D-gluco, L-ido or D-galacto) configuration. Therefore, compounds of the present invention are effective in the treatment of diseases which are associated with an irregular level of cytosolic or lysosomal glucosylceramide and/or higher glycosphingolipids, such as a lysosomal storage disorder, such as Gaucher disease, Fabry disease, Tay-Sachs disease, Sandhoff disease, GM1 gangliosidosis, Sialidosis, Niemann Pick disease type C and AMRF, or a symptom of one of the diseases collectively classed as metabolic syndrome, such as obesity, insulin resistance, hyperlipidemia, hypercholesterolemia, polycystic kidney disease, type II diabetes and chronic inflammation, or a neurodenegerative disorder, such as Parkinson disease or Lewy-body dementia.
根据本发明,脱氧野尻霉素和脱氧半乳糖苷霉素衍生物是N-烷基化的D-半乳糖苷、D-葡萄糖苷或L-同位脱氧野尻霉素,其甲基氧基碳上有一个带有各种侧基的线性甲基氧基戊基和一个未融合的双环芳香基团("X")。与已知的相同(D-葡萄糖基、L-氨基或 D-半乳糖基)构型的脱氧野尻霉素衍生物相比,这些化合物对 GCS 的抑制效力增强,和/或对 GBA2 的抑制效力增强,和/或对 GBA1 的抑制效力减弱。因此,本发明的化合物可有效治疗与细胞膜或溶酶体葡萄糖甘油酰胺和/或高级糖磷脂的不规则水平有关的疾病,如溶酶体贮积症,如戈谢病、法布里病、泰-萨克斯病、桑霍夫病、GM1 神经节苷脂病、Sialidosis、Niemann 病、GM2 神经节苷脂病、GM3 神经节苷脂病等、胰岛素抵抗、高脂血症、高胆固醇血症、多囊肾、II 型糖尿病和慢性炎症等疾病的症状,或帕金森病或路易体痴呆等神经系统疾病的症状。