Crystalline diacylhydrazine and the use thereof
The present disclosure provides crystalline polymorphic and amorphous forms of (R)-3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N′-(2-ethyl-3-methoxy-benzoyl)-hydrazide (Compound 1) or (S)-3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N′-(2-ethyl-3-methoxy-benzoyl)-hydrazide (Compound 2). The present disclosure further provides compositions comprising crystalline polymorphic and amorphous forms of Compound 1 or Compound 2 and an excipient, methods of making crystalline polymorphic or amorphous forms of Compound 1 or Compound 2, and methods of using crystalline polymorphic or amorphous forms of Compound 1 or Compound 2 to regulate gene expression in a cell or in a subject.
1. Crystalline (R)-3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N′-(2-ethyl-3-methoxy-benzoyl)-hydrazide Form V, Form VI, Form VII, Form VIII, or Form IX wherein:
Form V is characterized as having a powder x-ray diffraction pattern with peaks at 9.38, 12.22, 13.18, 14.98, 17.32, 18.40, 22.41, 23.40, 23.55, 24.63, 24.79, 25.61, 28.02, and 31.77 degrees 2Θ;
Form VI is characterized as having a powder x-ray diffraction pattern with peaks at 9.38, 12.23, 13.25, 17.48, 18.41, and 22.41 degrees 2Θ;
Form VII is characterized as having a powder x-ray diffraction pattern with peaks at 8.18, 9.71, 13.30, 16.22, 17.73, 20.98, 21.20, 22.76, 24.68, 26.72, and 29.39 degrees 2Θ;
Form VIII is characterized as having a powder x-ray diffraction pattern with peaks at 10.05, 10.77, 14.06, 16.76, 18.11, 18.32, 18.43, 20.89, 21.71, 21.87, 24.07, 24.90, and 28.71 degrees 2Θ; and
Form IX is characterized as having a powder x-ray diffraction pattern with peaks at 7.06, 15.74, and 18.71 degrees 2Θ.
2. The crystalline (R)-3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N′-(2-ethyl-3-methoxy-benzoyl)-hydrazide form of claim 1 having an average particle size distribution of about 10 μm or less.
3. The crystalline (R)-3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N′-(2-ethyl-3-methoxy-benzoyl)-hydrazide form of claim 2 having an average particle size distribution of about 1 μm or less.
4. A composition comprising the crystalline (R)-3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N′-(2-ethyl-3-methoxy-benzoyl)-hydrazide form of claim 1 and one or more excipients.
5. The composition of claim 4 , wherein said one or more excipients comprise one or more pharmaceutically acceptable excipients.
6. The composition of claim 5 , wherein said one or more pharmaceutically acceptable excipients comprise Miglyol 812, phospholipon 90G, or tocopheryl polyethylene glycol 1000 succinate, or a mixture thereof.
7. The composition of claim 6 , wherein said one or more pharmaceutically acceptable excipients consist essentially of Miglyol 812, phospholipon 90G, and tocopheryl polyethylene glycol 1000 succinate.
8. A kit comprising the crystalline (R)-3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N′-(2-ethyl-3-methoxy-benzoyl)-hydrazide form of claim 1 .
9. A kit comprising the composition of claim 4 .