Crystalline forms of 5α-androstane-3β,5,6β-triol and preparation methods therefor
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United States of America Patent
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Apr 17, 2018
Grant Date -
Oct 26, 2017
app pub date -
May 8, 2017
filing date -
Mar 8, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to four crystalline forms (crystalline forms A, B, C and D) of 5α-androstane-3β,5,6β-triol (YC-6) and preparation methods therefor. The four crystalline forms have significant difference in their lattice parameters, 2θ values and intensity in X-ray power diffraction, and melting points, etc. The study on its polymorphism is very important for further studying its effect, bioavailability and stability.
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International Classification(s)
- 2017 Application Filing Year
- C07J Class
- 187 Applications Filed
- 114 Patents Issued To-Date
- 60.97 % Issued To-Date
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- 0 Citation Count
- C07J Class
- 0 % this patent is cited more than
- 7 Age
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