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LC-MS^n测定2-[[(2′-氰基联苯基)-4-基]甲基]氨基-3-硝基苯甲酸乙酯中的不纯物

Determination of Impurities in Ethyl-2-[[2′-cyanobiphenyl-4-yl]-methyl] amino]-3-nitrobenzoate by LC-MS^n
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摘要 The impurities in ethyl-2-[[2′-cyanobiphenyl-4-yl] methyl] amino]-3-nitrobenzoate,an intermediate for synthesis of candesartan cilexiti,were detected by LC-MSn. The structural assignment of these impurities was carried out by LC-MSn using electrospray ionization source and an ion trap mass analyzer. The formation of the impurities was discussed. Also the fragmentation pathways of these compounds were studied. The impurities in ethyl-2-[[2′-cyanobiphenyl-4-yl] methyl] amino]-3-nitrobenzoate,an intermediate for synthesis of candesartan cilexiti,were detected by LC-MSn. The structural assignment of these impurities was carried out by LC-MSn using electrospray ionization source and an ion trap mass analyzer. The formation of the impurities was discussed. Also the fragmentation pathways of these compounds were studied.
作者 姚骏骅
出处 《分析测试学报》 CAS CSCD 北大核心 2007年第z1期125-126,共2页 Journal of Instrumental Analysis
关键词 LC-MSn Ethyl-2-[[2′-cyanobiphenyl-4-yl] methyl] amino]-3-nitrobenzoate IMPURITIES Fragmentation pathways LC-MSn Ethyl-2-[[2′-cyanobiphenyl-4-yl] methyl] amino]-3-nitrobenzoate Impurities Fragmentation pathways
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