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Chemical Structure| 166197-22-4 Chemical Structure| 166197-22-4

Structure of 166197-22-4

Chemical Structure| 166197-22-4

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Product Details of [ 166197-22-4 ]

CAS No. :166197-22-4
Formula : C4H7ClN4
M.W : 146.58
SMILES Code : N=C(N)C1C=CNN=1.[H]Cl
MDL No. :MFCD19215482

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Application In Synthesis of [ 166197-22-4 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 166197-22-4 ]

[ 166197-22-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 166197-22-4 ]
  • [ 130525-62-1 ]
  • [ 139110-80-8 ]
YieldReaction ConditionsOperation in experiment
74.9% With sodium carbonate; In water; at 35℃; for 7h;Industrial scale; 1.4 kg of 2,3-didehydro-4-amino-4-acety lneuraminic acid (Formula la) was added 30l of glass reactor , 15 kg of water was added , then 1.3 kg of sodium carbonate was added, and followed by the addition 800 g of imidopyridine hydrochloride at 40 C , and reaction was carried out for 6 hours. the 8 kg of water was concentrated and 13 kg of isopropyl alcohol was added and stirred to precipitate a solid powder. filtered , washed with isopropanol and dried to obtain 67 g of crude Zanamivir . then recrystallized from isopropanol-water , filtrated , and dried to obtain a pharmaceutical grade of zanamivir (formula I) 1. kg Yield: 74.9%
 

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