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CAS No. : | 33045-52-2 | MDL No. : | MFCD01317542 |
Formula : | C9H11NO5S | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | MKDYDRQLKPGNNU-UHFFFAOYSA-N |
M.W : | 245.25 | Pubchem ID : | 118390 |
Synonyms : |
|
Chemical Name : | Methyl 2-methoxy-5-sulfamoylbenzoate |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 | UN#: | N/A |
Hazard Statements: | H315-H319 | Packing Group: | N/A |
GHS Pictogram: |
* 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.
Yield | Reaction Conditions | Operation 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. |