作者:Nadezhda S. Baleeva、Alexander Yu. Smirnov、Elvira R. Zaitseva、Dmitrii S. Ivanov、Anatolii I. Sokolov、Andrey A. Mikhaylov、Ivan N Myasnyanko、Mikhail S. Baranov
DOI:10.1039/d3nj01837g
日期:——
ortho-Dialkylaminoarylidene malonates undergo hydrogen transfer mediated cyclization in the absence of a catalyst under LED irradiation. This activation mode is found to be relatively general and could be applied to a number of other acceptor motifs in the arylidene substrates tested. Variation of the light source wavelength opens an extra option for fine tuning of the reaction conditions, making the
邻二烷基氨基亚芳基丙二酸酯在没有催化剂的情况下在 LED 照射下经历氢转移介导的环化。发现这种激活模式相对通用,并且可以应用于测试的亚芳基底物中的许多其他受体基序。光源波长的变化为反应条件的微调提供了额外的选择,使得所描述的方法几乎通用。
NOVEL 2-QUINOLONE DERIVATIVE
申请人:Dainippon Sumitomo Pharma Co., Ltd.
公开号:EP1908752A1
公开(公告)日:2008-04-09
A compound represented by the formula (1) or a pharmaceutically acceptable salt thereof which has a therapeutic or prophylactic effect on an SNS-related disease such as neuropathic pain. (1) wherein R1 and R2 independently represent an alkyl group having 1 to 4 carbon atoms or the like, or R1 and R2 may together form a 5- to 7-membered ring; n represents a numerical number of 1 to 3; A represents a substituted or unsubstituted aryl group or the like or a formula: -N(R5)R6 (wherein R5 and R6 independently represent a substituted or unsubstituted alkyl group or the like); and R3 and R4 independently represent a sustituted or unsubstituted alkyl group or the like, or R3 and R4 may together form a substituted or unsubstituted, saturated or unsubstituted nitrogenated heterocyclic ring, provided that both of R1 and R2 are not a hydrogen atom when R3 and R4 together form a piperidine ring.