14959-32-1Relevant articles and documents
2-ARYLBENZOTHIOPHENE DERIVATIVES OR PHARCEUTICALLY ACCEPTABLE SALTS THEREOF, PREPARATION METHOD THEREOF, AND PHARCEUTICAL COMPOSITION FOR THE DIAGNOSIS OR TREATMENT OF DEGENERATIVE BRAIN DISEASE CONTAINING THE SAME AS ACTIVE INGREDIENT
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Page/Page column 32, (2010/11/03)
2-arylbenzothiophene derivatives or pharmaceutically acceptable salts thereof, a preparation method thereof, and a pharmaceutical composition for the diagnosis or treatment of degenerative brain disease containing the same as an active ingredient. Since the 2-arylbenzothiophene derivatives of Formula 1 have a relatively high binding affinity for β-amyloid, they can be used as diagnostic reagents for diagnosing Alzheimer's disease at an early stage by non-invasive techniques when they are labeled with radioisotopes: wherein R1-R4, V, W, X, Y and Z are as defined in the Detailed Descript of the specification. Further, when the pharmaceutical composition containing the 2-arylbenzothiophene derivative binds with a low-molecular weight β-amyloid peptide binding compound, generation of malignant high-molecular weight β-amyloid deposits is minimized. Accordingly, the pharmaceutical composition can be used as a therapeutic agent of degenerative brain disease such as Alzheimer's disease.
Amide anions as unexpected activating groups in nucleophilic heteroaromatic substitution
Gillies,Gillies, Iain,Rees,Rees, Charles W.
, p. 4065 - 4068 (2007/10/03)
Nucleophilic displacement of halide by alkoxide in pyridazines, phthalazines, a thiazole and a thiadiazole is unexpectedly activated by acetamido anion substituents compared to neutral amido and amino substituents.