131271-19-7Relevant academic research and scientific papers
N-SULFONYL BENZAMIDE DERIVATIVE WITH HETEROCYCLIC SUBSTITUENT, PREPARATION METHOD THEREFOR AND PHARMACEUTICAL APPLICATION THEREOF
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Paragraph 0251; 0252, (2019/01/04)
The present invention discloses an N-sulfonyl benzamide derivative with a heterocyclic substituent, and a preparation method therefor and a pharmaceutical application thereof. More specifically, the invention discloses a compound represented by formula (II) or a pharmaceutically acceptable salt, stereoisomer, solvent compound, or prodrug thereof, and a preparation method therefor and an application thereof. Refer to the specification for definitions of each group in the formula.
Steric effects of the initiator substituent position on the externally initiated polymerization of 2-bromo-5-iodo-3-hexylthiophene
Doubina, Natalia,Paniagua, Sergio A.,Soldatova, Alexandra V.,Jen, Alex K. Y.,Marder, Seth R.,Luscombe, Christine K.
experimental part, p. 512 - 520 (2012/01/12)
Externally initiated polymerization of 2-bromo-3-hexyl-5-iodothiophene was attempted from four aryl and thiophene based small molecule initiators functionalized with a phosphonate moiety. Initiated poly(3-hexylthiophene) product was obtained in various yields depending on the nature of the initiating molecule. Reaction intermediates for the oxidative addition and the ligand exchange steps were analyzed utilizing both experimental and theoretical methods. It was observed that an ortho substituent plays a crucial role in the outcome of the polymerization mechanism and that aryl based initiators are generally more stable than thiophene based initiators. Density functional theory (DFT) calculations revealed the importance of the steric effects on the success of the externally initiated chain growth polymerization mechanism.
Synthesis and antirhinovirus activity of 6-(dimethylamino)-2-(trifluoromethyl)-9-(substituted benzyl)-9H-purines
Kelley,Linn,Selway
, p. 1757 - 1763 (2007/10/02)
A series of 6-(dimethylamino)-2-(trifluoromethyl)-9-(substituted benzyl)purines was synthesized and tested for antirhinovirus activity. Most of the compounds were synthesized by alkylation of 6-chloro-2-(trifluoromethyl)-9H-purine with the appropriate benzyl halide followed by displacement of the chloro group with dimethylamine. Alternatively, 6-(dimethylamino)-2-(trifluoromethyl)purine was alkylated with the appropriate benzyl halide. Although several different aryl substituents provided compounds with IC50's = 0.03 μM against rhinovirus serotype 1B, no congener was significantly more active than the parent 2. Twenty-three compounds were tested against 18 other serotypes, but none exhibited a uniform profile of activity.
