Patent ID: 11891382
Assignee: BASILEA PHARMACEUTICA INTERNATIONAL AG
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A | IPC C

Claim 13:
14. The process according to claim 1 comprising the step of crystallizing a dichloride salt of the compound of formula I from acetonitrile, methanol, ethanol, ethylacetate, or isopropanol or mixture thereof, or a solvent mixture comprising acetonitrile, methanol, ethanol, ethylacetate and/or isopropanol, wherein the crystalline dichloride salt of the compound of formula I has an X-ray powder diffraction pattern comprising peaks at 6.0, 9.4 and 9.9 degrees 2θ (±0.2 degrees 2θ) as measured using CuKα radiation.