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Chemical Structure| 33045-52-2 Chemical Structure| 33045-52-2
Chemical Structure| 33045-52-2

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CAS No.: 33045-52-2

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Product Details of Sulpiride impurity B

CAS No. :33045-52-2
Formula : C9H11NO5S
M.W : 245.25
SMILES Code : O=C(OC)C1=CC(S(=O)(N)=O)=CC=C1OC
MDL No. :MFCD01317542
InChI Key :MKDYDRQLKPGNNU-UHFFFAOYSA-N
Pubchem ID :118390

Safety of Sulpiride impurity B

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319
Precautionary Statements:P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313

Application In Synthesis of Sulpiride impurity B

* 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 [ 33045-52-2 ]

[ 33045-52-2 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 64-17-5 ]
  • [ 33045-52-2 ]
  • [ 33045-53-3 ]
  • 2
  • [ 33045-52-2 ]
  • [ 22795-99-9 ]
  • [ 15676-16-1 ]
YieldReaction ConditionsOperation in experiment
93.8% at 90 - 100℃; for 5h;Inert atmosphere; 49 g of methyl 2-methoxy-5-sulfamoylbenzoate and(S)-1-ethyl-2-aminomethyltetrahydropyrrolidine 26.5gAdd to the reaction bottle,The reaction was carried out at 90 to 100 ° C for 5 hours under nitrogen protection.The reaction was completed, cooled to 80 ° C, 50 g of ethanol was added, and the mixture was stirred and refluxed for 10 minutes.Cool to 5 ° C and stir for 2 hours, filter,It was washed with ethanol and dried at 65 °C.The yield was 93.8percent, and the purity was 99.2percent.
75% With hydrogenchloride; In water; butan-1-ol; EXAMPLE 2 A mixture of (S)-2-(aminomethyl)-1-ethylpyrrolidine (143 g) and methyl 2-methoxy-5-sulfamoylbenzoate (260 g) in n-butanol (1040 ml) was refluxed for 20 hours, then cooled to room temperature and extracted with a solution of concentrated hydrochloric acid (115 g) in water (1040 ml). The aqueous phase was then alkalinized with concentrated ammonia (about 95 g) and the resulting product was filtered and dried, to obtain 277 g of Levosulpiride (75percent molar yield) that, if desired, can be recrystallized from alcohols such as methanol or ethanol.
 

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