Polymorphs of ponatinib hydrochloride
Novel crystalline ponatinib hydrochloride forms designated Form alpha and Form beta are disclosed. Form alpha is characterized by data selected from an XRPD pattern with peaks at about 6.5, 9.0, 12.25, 14.4, 16.70, 19.6, 22.2, 24.5, 28.2±0.2 degrees 2-theta; an XRPD pattern substantially as depicted in FIG. 1 ; and/or a combination thereof. Form beta is characterized by data selected from an XRPD pattern with peaks at about 10.7, 15.2, 15.8, 16.4 23.1, 25.0, 27.8±0.2 degrees 2-theta; an XRPD pattern substantially as depicted in FIG. 3 ; and/or combinations thereof. Processes for making Form alpha and Form beta are disclosed.
1. Crystalline ponatinib hydrochloride propylene glycol monosolvate Form alpha, characterized by data selected from an x-ray powder diffraction pattern (XPRD) with peaks at about 6.5, 9.0, 12.25, 14.4, 16.70, 19.6, 22.2, 24.5, 28.2±0.2 degrees 2-theta.
2. Crystalline ponatinib hydrochloride propylene glycol monosolvate Form alpha according to claim 1 characterized by an XPRD pattern substantially as depicted in FIG. 1 .
3. A process for preparing ponatinib hydrochloride propylene glycol monosolvate Form alpha according to claim 1 comprising the steps of:
a) obtaining a solution of ponatinib hydrochloride and propylene glycol;
b) maintaining the solution of step a) at a temperature of about 0° C. to about 150° C.; and
c) isolating crystalline ponatinib hydrochloride propylene glycol monosolvate Form alpha from the solution of step b).
4. The process according to claim 3 wherein step b) comprises maintaining the solution of step a) at a temperature of about 20° C. to about 150° C.
5. The process according to claim 3 wherein step b) comprises maintaining the solution of step a) at a temperature of about 25° C. to about 35° C.
6. The process according to claim 3 further comprising adding seed crystals of Form alpha to the solution of step a).
7. Crystalline ponatinib hydrochloride benzyl alcohol hemisolvate Form beta, characterized by data selected from an XRPD pattern with peaks at about 10.7, 15.2, 15.8, 16.4, 23.1, 25.0, 27.8±0.2 degrees 2-theta.
8. Crystalline ponatinib hydrochloride benzyl alcohol hemisolvate Form beta according to claim 7 , characterized by an XRPD pattern substantially as depicted in FIG. 4 .
9. A process for preparing ponatinib hydrochloride benzyl alcohol hemisolvate Form beta according to claim 7 comprising the steps of:
a) obtaining a solution of ponatinib hydrochloride and benzyl alcohol;
b) maintaining the solution of step a) at a temperature of about 0° C. to about 150° C.; and
c) isolating ponatinib hydrochloride benzyl alcohol hemisolvate Form beta from the solution of step b).
10. The process of claim 9 wherein step b) comprises maintaining the solution of step a) at a temperature of about 50° C. to about 150° C.
11. The process of claim 9 wherein step b) comprises maintaining the solution of step a) at a temperature of about 25° C. to about 35° C.
12. The process according to claim 9 further comprising adding seed crystals of Form beta to the solution of step a).