专利号:US-RE41366-E 优先权日:2001-06-15 标 题 :Total synthesis of galanthamine, analogues and derivatives thereof 发明人:THAL CLAUDE; GUILLOU CATHERINE; BEUNARD JEAN-LUC; GRAS EMMANUEL; POTIER PIERRE 权利人:CT NAT DEL LA RECH SCIENT CNRS 摘要:The invention relates to a method for the synthesis of galanthamine, the derivatives and analogues thereof of formula (1) where R 1 =a hydrogen atom, R 2 =a hydroxy group, R 1 and R 2 together form â•?O, R 3 , R 4 , and R 5 independently=a hydrogen atom, a hydroxy group or a (C 1 -C 2 )alkoxy group, R 6 â•?H, (C 1 -C 12 )alkyl, (CH 2 ) n NR 7 R 8 , or —(CH 2 ) n N + R 7 R 8 R 9 where n=1 to 12, Z=two hydrogen atoms, or an oxygen atom and X=an oxygen, sulphur or nitrogen atom, or a —SO, —SO 2 , or —NR 6 group where R 6 is as defined above or is an amine protecting group.
专利号:US-2007213318-A1 优先权日:2006-03-07 标 题 :Cholinergic enhancers with improved blood-brain barrier permeability for the treatment of diseases accompanied by cognitive impairment 发明人:MAELICKE ALFRED 权利人:GALANTOS PHARMA GMBH 摘要:The present invention refers to compounds that, in addition to enhancing the sensitivity to acetylcholine and choline of neuronal cholinergic receptors and/or acting as cholinesterase inhibitors and/or neuroprotective agents, have enhanced blood-brain barrier permeability in comparison to their parent compounds. The compounds are derived (either formally by their chemical structure or directly by chemical synthesis) from natural compounds belonging to the class of amaryllidaceae alkaloids e.g. galanthamine, narwedine and lycoramine, or from metabolites of said compounds. The compounds of the present invention can either interact as such with their target molecules, or they can act as “pro-drugsâ€?, in the sense that after reaching their target regions in the body they are converted by hydrolysis or enzymatic attack to the original parent compound and react as such with their target molecules, or both. The compounds of this invention may be used as medicaments for the treatment of human brain diseases associated with a cholinergic deficit, including the neurodegenerative diseases Alzheimer's and Parkinson's disease and the psychiatric diseases vascular dementia, schizophrenia and epilepsy.
专利号:US-9763953-B2 优先权日:2005-09-22 标题:Cholinergic enhancers with improved blood-brain barrier permeability for the treatment of diseases accompanied by cognitive impairment 发明人:MAELICKE ALFRED 权利人:GALANTOS PHARMA GMBH; NEURODYN LIFE SCIENCES INC 摘要:The present invention refers to compounds that, in addition to enhancing the sensitivity to acetylcholine and choline, and their exogenous agonists, of neuronal cholinergic receptors and/or acting as cholinesterase inhibitors and/or neuroprotective agents, have enhanced blood-brain barrier permeability in comparison to their parent compounds. The compounds are derived (either formally by their chemical structure or directly by chemical synthesis) from natural compounds belonging to the class of amaryllidaceae alkaloids e.g., galantamine, narwedine and lycoramine, or from metabolites of said compounds. The compounds of the present invention can either interact as such with their target molecules, or they can act as “pro-drugsâ€?, in the sense that after reaching their target regions in the body they are converted by hydrolysis or enzymatic attack to the original parent compound and react as such with their target molecules, or both. The compounds of this invention may be used as medicaments.
专利号:US-2005065338-A1 优先权日:2001-06-15 标 题 :Total synthesis of galanthamine, analogues and derivatives thereof
专利号:EP-1458724-A1 优先权日:2001-06-15 标 题:Total synthesis of galanthamine, analogues and derivatives thereof
专利号:WO-02102803-A1 优先权日:2001-06-15 标题 :Total synthesis of galanthamine, analogues and derivatives thereof
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合成参考文献
参考文献:10.1002/anie.201103198 摘要:Chen P, Bao X, Zhang LF, Ding M, Han XJ, Li J, Zhang GB, Tu YQ, Fan CA. Asymmetric synthesis of bioactive hydrodibenzofuran alkaloids: (-)-lycoramine, (-)-galanthamine, and (+)-lunarine. Angew Chem Int Ed Engl. 2011 Aug 22;50(35):8161–6. doi: 10.1002/anie.201103198.