Application of IMB5046 compound in the preparation of antineoplastic drugs
A technology of anti-tumor drugs and compounds, applied in the field of medicine, can solve problems such as neurotoxicity, poor water solubility, and difficult synthesis and purification
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Embodiment 1
[0100] Embodiment 1: the preparation of chemical formula I compound
[0101] The implementation steps of this embodiment are as follows:
[0102] 2-(4-morpholinyl)-5-nitrobenzoic acid is dissolved in a mixed solvent composed of toluene and dimethylformamide according to a volume ratio of 1:0.1 to obtain a concentration of 2.0% by weight of 2- (4-morpholino)-5-nitrobenzoic acid solution, which was then stirred at a temperature of 60° C. for 0.8 hours, and then added dropwise with a 50% thionyl chloride toluene solution by weight, wherein 2-( The molar ratio of 4-morpholino)-5-nitrobenzoic acid to thionyl chloride is 1:2, and the reaction is continued for 5 hours at the same temperature. Evaporate to dryness under reduced pressure to obtain a kind of evaporated product W1;
[0103] According to the ratio of evaporated dryness W1 in grams to ether in milliliters is 1:50, let the evaporated dryness W1 be recrystallized in ether at room temperature, and the separated crystals are...
Embodiment 2
[0108] Embodiment 2: the preparation of chemical formula I compound
[0109] The implementation steps of this embodiment are as follows:
[0110] 2-(4-morpholinyl)-5-nitrobenzoic acid was dissolved in a mixed solvent composed of toluene and dimethylformamide at a volume ratio of 1:0.2 to obtain a concentration of 1.0% by weight of 2- (4-Morpholinyl)-5-nitrobenzoic acid solution, which was then stirred at a temperature of 70° C. for 1.2 hours, and then added dropwise with a thionyl chloride toluene solution with a concentration of 58% by weight, wherein 2-( The molar ratio of 4-morpholino)-5-nitrobenzoic acid to thionyl chloride is 1:5, and the reaction is continued for 4 hours at the same temperature, and the obtained reaction solution is carried out under the conditions of temperature 42°C and pressure 0.01MPa Evaporate to dryness under reduced pressure to obtain a kind of evaporated product W1;
[0111] According to the ratio of evaporated dryness W1 in grams to ether in m...
Embodiment 3
[0116] Embodiment 3: the preparation of chemical formula I compound
[0117] The implementation steps of this embodiment are as follows:
[0118] 2-(4-morpholinyl)-5-nitrobenzoic acid was dissolved in a mixed solvent composed of toluene and dimethylformamide at a volume ratio of 1:0.1 to obtain a concentration of 1.6% by weight of 2- (4-morpholino)-5-nitrobenzoic acid solution, which was then stirred at a temperature of 50° C. for 1.0 hour, and then added dropwise with a concentration of 70% by weight in thionyl chloride toluene solution, wherein 2-( The molar ratio of 4-morpholino)-5-nitrobenzoic acid to thionyl chloride is 1:1, and the reaction is continued for 8 hours at the same temperature, and the obtained reaction solution is carried out under the conditions of temperature 44°C and pressure 0.004MPa Evaporate to dryness under reduced pressure to obtain a kind of evaporated product W1;
[0119] According to the ratio of evaporated dryness W1 in grams to ether in millil...
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