1261794-19-7Relevant articles and documents
METHOD FOR PRODUCING DIFLUOROMETHYLENE COMPOUND
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, (2020/07/07)
The present invention provides a method for producing a difluoromethylene compound and an intermediate thereof, which are useful in the field of pharmaceuticals. Specifically provided is a method for producing a difluoromethylene compound, including a step of allowing a compound represented by formula (6): [wherein L1 represents a halogen atom, a cyano group, a lower alkyl group, a halo-lower alkyl group, a cycloalkyl group, a lower alkoxy group, a halo-lower alkoxy group, or a hydroxy lower alkyl group; R1 represents a lower alkyl group, a halogen atom, a halo-lower alkyl group, a cycloalkyl group, a cyano group, or a hydroxy lower alkyl group; and W represents a nitrogen atom or a methine group] to react with a compound represented by formula (7): [wherein R2 represents a lower alkyl group, a halo-lower alkyl group, a cycloalkyl group, a lower alkenyl group, or an aralkyl group; and R3 represents a chlorine atom, a bromine atom, or an iodine atom].
Palladium-catalyzed intermolecular tandem cyclization reaction: a highly regioselective synthesis of functionalized 3H-spiro[isobenzofuran-1,3′-isochroman] scaffolds
Wang, Liang,Li, Xuehu,Tao, Hua,Zhou, Xiang,Lu, Xihong,Du, Wenyue,Jiang, Tingting,Xin, Zhijun,Liang, Jianping
supporting information, p. 2403 - 2410 (2017/03/20)
A highly regioselective synthesis of functionalized 3H-spiro[isobenzofuran-1,3′-isochroman] scaffolds using a novel palladium-catalyzed tandem cyclization reaction is explored. During the reaction process, C-O, C-C and C-O bonds are sequentially formed in one pot via decarboxylative allenylpalladium formation, nucleophilic attack, arylpalladium addition and intramolecular nucleophilic attack.
DIFLUOROMETHYLENE COMPOUND
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Paragraph 0654; 0655, (2015/06/16)
The present invention relates to a compound having an URAT1 inhibitory activity, and to an URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition containing the compound. More specifically, the present invention relates to a compound represented by the formula (I): wherein R1 is -Q1-A1 or the like; R2 is a hydrogen atom, a halogen atom, a lower alkyl group or the like; W1, W2, W3 and W4 are each independently a nitrogen atom or a methine group optionally having substituents, or the like; X and Y are each a single bond, an oxygen atom or the like; Z is a hydroxyl group or COOR3 or the like.