The present invention provides novel piperidine derivatives of formula (I), ##STR00001## wherein R represents a substituted benzyl group, which are useful as inhibitors of glucosylceramide synthase (GCS). The compounds of the Invention are useful for treating various glycolipid storage diseases, such as Gaucher's disease, Sandhoff's disease, Tay-Schs disease, Fabry disease, and GM1 gangliosidosis; glycolipid accumulation disorders, such as Niemann-Pick disease, mucopolysaccharidoses, mucolipidosis type IV and .alpha.-mannosidosis; various cancers that involve abnormal glycolipid synthesis; and various infectious diseases that involve cell surface glycolipids as receptors for the infectious organisms or for their toxins; as well as a variety of other disorders involving glycolipid synthesis, including neuronal disorders, inflammatory diseases, obesity, and the like.

Actelion Pharmaceuticals Ltd.

2-Hydroxymethyl-3,4,5-trihydroxy-1-benzilpiperidine derivatives as inhibitors of glucosylceramide

The present invention relates to the compound 3,4,5-piperidinetriol, 2-(hydroxymethyl)-1-[(4-(pentyloxy)phenyl)methyl]-, (2S,3S,4R,5S), or a pharmaceutically acceptable salt or prodrug thereof, which is useful as an inhibitor of glucosylceramide synthase. The compounds of the Invention are useful for treating various glycolipid storage diseases, such as Gaucher's disease, Sandhoff's disease, Tay-Sacs disease, Fabry disease, and GM1 gangliosidosis; glycolipid accumulation disorders, such as Niemann-Pick disease, mucopolysaccharidoses, mucolipidosis type IV and .alpha.-mannosidosis; various cancers that involve abnormal glycolipid synthesis; and various infectious diseases that involve cell surface glycolipids as receptors for the infectious organisms or for their toxins; as well as a variety of other disorders involving glycolipid synthesis, including neuronal disorders, inflammatory diseases, obesity, and the like.

2-hydroxymethy1-3,4,5-trihydroxy-1-(4-pentyloxybenzyl) piperidine as glucosylceramide synthase (Gcs) inhibitor

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. Formula (I), Formula (Ia). 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.

Academisch Medisch Centrum

Universiteit Leiden

N-(5-((aryl or heteroaryl)methyloxy)pentyl)-substituted iminosugars as inhibitors of glucosylceramide synthase

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.

pick disease of the brain/fetma

2-Hydroxymethyl-3,4,5-trihydroxy-1-benzilpiperidine derivatives as inhibitors of glucosylceramide

2-hydroxymethy1-3,4,5-trihydroxy-1-(4-pentyloxybenzyl) piperidine as glucosylceramide synthase (Gcs) inhibitor

N-(5-((aryl or heteroaryl)methyloxy)pentyl)-substituted iminosugars as inhibitors of glucosylceramide synthase

N-(5-((aryl or heteroaryl)methyloxy)pentyl)-substituted iminosugars as inhibitors of glucosylceramide synthase

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