(yng)} |
F(xin)؛(yng)ƥ¡s |
a(chn)أ |
|
(bio)(zhn) |
USP |
Ҏ(gu) |
50 |
r(ji) |
5 |
Jλ |
|
a(chn)ƷB |
F(xin)؛(yng)ƥ¡s|(zh)A B C
Zopiclone iMpurity A ƥ¡s|(zh)A Imp. A (EP): (5RS)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-Methylpiperazine-1-carboxylate 4-Oxide (Zopiclone Oxide)
Zopiclone iMpurity B ƥ¡s|(zh)B Imp. B (EP): R-OH and enantiomer:(7RS)-6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo-[3,4-b]pyrazin-5-one
Zopiclone iMpurity C ƥ¡s|(zh)C Imp. A (EP): R-H:6-(5-chlorpyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one
Appearance:white or slightly yellowish powder.
Solubility:practically insoluble in water,freely soluble in methylene chloride,sparingly soluble in acetonr,practically insouble in ethanol(96 percent).It dissolves in dilute mineralacids.
MP:about177with decomposition.
bҎ(gu)ɸ(j)͑b |
l(f)r(sh)g |
2013/1/7 11:18:00 |
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