FIELD: chemistry.
SUBSTANCE: invention is related to a crystalline form {4-[(1R,3S)-3-((R)-1-naphthalene-1-YL-ethylamino) cyclopentyl] phenoxy} acetic acid, which can be used for treating, relieving symptoms or preventing the physiological disorders or diseases, associated with disturbed activity of a calcium-sensitive receptor (CaSR), such as hyperparathyroidism. Crystalline form has x-ray powder diffraction pattern, displaying characteristic peaks, expressed in angles 2θ, at approximately 8.8, 9.5, 12.3, 16.0, 18.3, 19.1 and/or 20.2 (±0.1 degrees) (its stress is the main).
EFFECT: invention is also related to a pharmaceutical compound containing the said crystalline form, and methods for preparing it.
17 cl, 12 dwg, 6 tbl, 6 ex
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