Transcription of PIRACETAM - uspbpep.com
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PIRACETAM - uspbpep.com
PiracetamEUROPEAN PHARMACOPOEIA R1 = R2 = H: (3S,4R)-3-[(1,3-benzodioxol-5-yloxy)meth yl]-4-phenylpiperidine (desfluoroparoxetine), ,R2=CH2-C6H5:(3S,4R)-3-[(1,3-benzodioxol -5-yloxy)methyl]-1-benzyl-4-(4-fluorophe nyl)piperidine(N-benzylparoxetine),F. R1=H,R2=CH2-C6H5:(3S,4R)-3-[(1,3-benzodi oxol-5-yloxy)methyl]-1-benzyl-4-phenylpi peridine(N-benzyldesfluoroparoxetine),B. 1,3-benzodioxol-5-ol (sesamol),D. (3R,4S)-3-[(1,3-benzodioxol-5-yloxy)meth yl]-4-(4-fluorophenyl)piperidine ((+)-trans-paroxetine),E. (3RS,4RS)-3-[(1,3-benzodioxol-5-yloxy)me thyl]-4-(4-fluorophenyl)piperidine (cis-paroxetine),G. 4-(4-fluorophenyl)-1-methyl-1,2,3,6-tetr ahydropyridine,H. R = CH2-C6H5:[(3S,4R)-1-benzyl-4-(4-fluoroph enyl)-piperidin-3-yl]methanol,I. R = H: [(3S,4R)-4-(4-fluorophenyl)piperidin-3-y l]methanol,J. (3S,4R)-3-[(1,3-benzodioxol-5-yloxy)meth yl]-4-(4 -fluorobiphenyl-3-yl) (2-Oxopyrrolidin-1-yl) : per cent to per cent (dried substance).
EUROPEAN PHARMACOPOEIA 5.4 Polysorbate 80 Reference solution (a).Dissolve5mgofthesubstanceto be examined and 10 µl of2-pyrrolidone R in a mixture of 10 volumes of acetonitrile R1 and 90 volumes of water R
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