Ciclesonide nitrate derivative
A technology of ciclesonide and nitrate, which is used in the treatment of allergic diseases or allergic diseases, and can solve the problems affecting the application of ciclesonide in the field of inflammatory diseases.
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Embodiment 1
[0060] Example 1: Deisobutyryl ciclesonide 21-(3-nitrooxy)propionate
[0061]
[0062] Desisobutyryl ciclesonide 21-(3-chloro)propionate
[0063]
[0064] method 1:
[0065] 40ml of triethylamine, 0.1g of DMAP and 0.015mol of 3-chloropropionyl chloride were stirred in the reaction chamber and cooled to 0°C, slowly added 0.01mol of des-CIC and kept at a temperature of 0-5°C, the reaction was Thermal reaction, so the addition speed and temperature need to be carefully controlled. Keep the temperature of the above reaction solution below 10°C, and slowly rise to 10-15°C within 1 hour after the addition is completed. After keeping at this temperature for 15 hours, dilute to 50ml , the pH is 1-2, and the temperature is 0 degrees in water, slowly add hydrochloric acid to adjust the pH to 3-5, the liquid is extracted three times with 90ml of dichloromethane (30ml×3), and then washed three times with 90ml of water (30ml×3) The pH value of the methyl chloride layer was adjusted...
Embodiment 2
[0073] Example 2: Deisobutyryl ciclesonide 21-(5-nitrooxy)valerate
[0074]
[0075] With deisobutyryl ciclesonide as raw material, according to the method of Example 1 with 5-bromovaleryl chloride, AgNO 3 The reaction affords the title compound.
[0076] Elemental analysis measured value: C32H43NO10C, 63.91; H, 7.20; N, 2.32; O, 26.57 13 C-NMR:
[0077]
Embodiment 3
[0078] Example 3: Deisobutyryl ciclesonide-21-(4-nitrooxymethyl)benzoate
[0079]
[0080] With deisobutyryl ciclesonide as raw material, according to the method of embodiment 1 and (4-chloromethyl) benzoyl chloride, AgNO 3 The reaction affords the title compound.
[0081] Elemental analysis measured values: C36H43NO10C, 66.49; H, 6.68; N, 2.17; O, 24.66 13 C-NMR:
[0082]
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