| 摘要 |
Disclosed are four compounds of crystal form of androsta-3ß,5a,6ß-triol (YC-6 for short) (YC-6 of A crystal form, YC-6 of B crystal form, YC-6 of C crystal form, YC-6 of D crystal form) and a method for preparing same. The four compounds of crystal form are characterized by remarkable differences in parameters such as lattice parameters, 2? and intensity of X-ray powder diffraction, melting point, etc. Study on the polymorphism is significant for further researching the pharmaceutical effect, bioavailability and stability thereof. |
