ChemicalBook >?? ???? >N-(5-???-2-????)-3-(??????)-2-?????????

N-(5-???-2-????)-3-(??????)-2-?????????

N-(5-???-2-????)-3-(??????)-2-????????? ??? ???

???(??):: RP 48497 Impurity 1;Zopiclone Impurity 2;Zopiclone Impurity 23;Zopiclone Impurity 20;Eszopiclone Impurity 4;Eszopiclone Impurity 6;N-(5-chloropyridin-2-yl)-3-(hydroxymethyl)pyrazine-2-carboxamide;N-(2-chloropyridin-4-yl)-3-(hydroxymethyl)pyrazine-2-carboxamide;N-(5-Chloro-2-pyridinyl)-3-(hydroxymethyl)-2-pyrazinecarboxamide;2-Pyrazinecarboxamide, N-(5-chloro-2-pyridinyl)-3-(hydroxymethyl)-

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N-(5-???-2-????)-3-(??????)-2-????????? ??

Pale Yellow Solid

N-(5-Chloro-2-pyridinyl)-3-(hydroxyMethyl)-2-pyrazinecarboxaMide is used in the preparation of Eszopiclone (E889150) impurity.

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N,N'-Dimethylpiperazine 1-Piperazinecarboxylicacid,4-methyl-,ethylester(6CI,9CI) N-(5-Chloro-2-pyridinyl)-2-pyrazinecarboxaMide (Zopiclone IMpurity) 2-Amino-5-chloropyridine 6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl piperazine-1-carboxylate hydrochloride Zopiclone iMpurity (5-(Chloropyridine-2-yl-carbaMoyl)pyrazine) 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one Eszopiclone N-Oxide ZOPICLONE OXIDE Zopiclone ZOPICLONE N-OXIDE RP 48497 (Eszopiclone Impurity C) Zopiclone iMpurity B Trandolapril Zopiclone Impurity 3 Zopiclone Impurity 18 Zopiclone Impurity 10 Deschloro-Zopiclone