412031-32-4Relevant academic research and scientific papers
1,6 - SUBSTITUTED (3R,6R) -3- (2,3-DIHYDRO-1H-INDEN-2-YL)-2,5-PIPERAZINEDIONE DERIVATIVES AS OXYTOCIN RECEPTOR ANTAGONISTS FOR THE TREATMENT OF PRE-TERM LABOUR, DYSMENORRHEA AND ENDOMETRIOSIS
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Page/Page column 60, (2008/06/13)
The present invention relates to compound S of Formula (I).
Fluorescent nucleobase conjugates having anionic linkers
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, (2008/06/13)
Provided are nucleotide-dye conjugates and related compounds in which a dye is linked to a nucleobase directly or indirectly by an anionic linker. The anionic character of the linker is provided by one or more anionic moieties which are present in the lin
Site-selective Photocycloadditions of 2-Pyrones with Electron-poor Olefins and the Derivation from the Cycloadducts
Shimo, Tetsuro,Yamasaki, Shinichi,Date, Kenichi,Uemura, Hisako,Somekawa, Kenichi
, p. 419 - 423 (2007/10/02)
Photosensitized cycloaddition of 4,6-dimethyl-2-pyrone (1) with methacrylonitrile (3b) afforded two types of cycloadducts, 4b and 6b, across the C5-C6 and C3-C4 double bonds in 1, respectively.Photosensitized reactions of 1 with dimethyl maleate and dimethyl cyclobutene-1,2-dicarboxylate gave cycloadducts 4d, 4e across the C5-C6 double bond, in addition to cycloadduct 9d or bicyclooctadiene 10e.The photoreactions of methyl 2-pyrone-5-carboxylate (2) with 3b and 2-chloroacrylonitrile (3c) gave cycloadducts 5b, 5c in addition to cycloadducts 11b and 11c across the C5-C6 double bond in 2.The photocycloaddition mechanism was explained from results calculated by means of PM3-CI method.Namely, the site- and/or regio-selective products, 4, 5, 8, 9 and 10 were thought to come from the same site-selective radical intermediates in the case of electron-poor olefins.Pyrolysis and/or hydrolysis of the cycloadduts 4e, 5b, 5c gave 5,6-dihydro-2-pyrone 12 or benzene derivatives.
