It refers to a monomer salt of 6-ethyl-8-cyclopentanediol-5-methyl-2 - (5-piperazin-1-piridin-2-ilamino) - 8h pirido [2, 3-d] pirimidin-7-ona, which can be expressed as a, B and D-shaped polymorphs, each of which can be distinguished by its PXRD, Raman spectrum and DSC thermoelectric diagram. It also refers to a method for preparing Aldrin salt, including combining an Aldrin solution and a first solvent with a water mixture of the compound to produce a first mixture,It also includes liofilization of the mixture in order to produce an amoxic salt, which is then combined with a second solvent to produce a second mixture, including crystallized Aldrin salts, and optionally heated and / or cooled, the first and second solvents may be the same, which can be dissolved as methanol in water, Ethanol or other alcohol. It also refers to the pharmacological components containing these substances, which are a selective quinase inhibitor, dependent on cyclohexane-4 (CDK4), and an effective means to treat inflammation and abnormal cell proliferation such as cancer and recurrence.
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