- Synthesis of 5-iodobenzofurans and 6-iodobenzopyrans via direct iodination with mercury(II) oxide-iodine reagent
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A tin(IV) chloride assisted iodo-cyclization of 2-allylphenol gave 2-iodomethyl-2,3-dihydrobenzofuran. A similar cyclization of 2-crotylphenol gave 3-iodo-2-methyl-3,4-dihydro-2H-benzopyran, exclusively. By iodination with mercury(II) oxide-iodine reagent in dichloromethane, 2,3-dihydrobenzofurans or 3,4-dihydro-2H-benzopyrans including the above benzocyclic ethers were easily converted to the corresponding 5- or 6-iodo derivatives, regioselectively, in good yield.
- Orito, Kazuhiko,Hatakeyama, Takahiro,Takeo, Mitsuhiro,Suginome, Hiroshi,Tokuda, Masao
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- 2-AMINO- AND 2-THIO-SUBSTITUTED 1,3-DIAMINOPROPANES
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Disclosed are compounds of the formula: where variables Q, Z, X, R15, R2, R3, and Rc are defined herein. Compounds disclosed herein are inhibitors of the beta-secretase enzyme and are therefore useful in the treatment of Alzheimer’s disease and other diseases characterized by deposition of A beta peptide in a mammal.
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Page/Page column 144
(2008/06/13)
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- METHODS OF TREATMENT OF AMYLOIDOSIS USING BI-CYCLIC ASPARTYL PROTEASE INHIBITORS
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The invention relates to novel compounds and methods of treating diseases, disorders, and conditions associated with amyloidosis. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.
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Page/Page column 242-243
(2010/02/14)
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