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Synthesis of 5-chloro-3-[4-(3-diethylaminopropoxy)benzoyl]-2-(4-methoxyphenyl)benzofuran as a beta-amyloid aggregation inhibitor. 2003

Hong-Dae Choi, and Pil-Ja Seo, and Byeng-Wha Son, and Byoung-Won Kang
Department of Chemistry, Dongeui University, Busan 614-714, Korea. hdchoi@dongeui.ac.kr

An efficient synthesis of 5-chloro-3-[4-(3-diethylaminopropoxy)benzoyl]-2-(4-methoxyphenyl)benzofuran (8), a potent beta-amyloid aggregation inhibitor, is described. 5-Chloro-2-(4-methoxyphenyl)benzofuran (3) was obtained by the one-pot synthesis of 4-chlorophenol with omega-(methylsulfinyl)-p-methoxyacetophenone (1) under Pummerer reaction conditions, and it was followed by the desulfurization of the resultant 5-chloro-3-methylthio-2-(4-methoxyphenyl)benzofuran (2e). Acylation of benzofuran 3 with 4-(3-bromopropoxy)benzoyl chloride (6) gave the ketone 7, which was converted into compound 8 by the treatment of diethylamine.

UI MeSH Term Description Entries
D001572 Benzofurans Compounds that contain a BENZENE ring fused to a furan ring. Coumarones,Diphenylbenzofuran
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships
D016229 Amyloid beta-Peptides Peptides generated from AMYLOID BETA-PEPTIDES PRECURSOR. An amyloid fibrillar form of these peptides is the major component of amyloid plaques found in individuals with Alzheimer's disease and in aged individuals with trisomy 21 (DOWN SYNDROME). The peptide is found predominantly in the nervous system, but there have been reports of its presence in non-neural tissue. Alzheimer beta-Protein,Amyloid Protein A4,Amyloid beta-Peptide,Amyloid beta-Protein,beta Amyloid,beta-Amyloid Protein,Alzheimer's ABP,Alzheimer's Amyloid Fibril Protein,Amyloid AD-AP,Amyloid Fibril Protein, Alzheimer's,Amyloid beta-Proteins,ABP, Alzheimer's,AD-AP, Amyloid,Alzheimer ABP,Alzheimer beta Protein,Alzheimers ABP,Amyloid AD AP,Amyloid beta Peptide,Amyloid beta Peptides,Amyloid beta Protein,Amyloid beta Proteins,Amyloid, beta,Protein A4, Amyloid,Protein, beta-Amyloid,beta Amyloid Protein,beta-Peptide, Amyloid,beta-Peptides, Amyloid,beta-Protein, Alzheimer,beta-Protein, Amyloid,beta-Proteins, Amyloid

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