Salts and processes of preparing a pi3k inhibitor

A process of preparing a crystalline hydrochloric acid salt of Formula I, comprising reacting a compound of Formula I:

• with hydrochloric acid to form said salt, wherein the process comprises:
• adding hydrochloric acid to the compound of Formula I at room temperature to form a slurry;
• heating said slurry to a temperature of from about 45° C. to about 55° C. to form a solution;
• and
• cooling the solution to a temperature of from about 0° C. to about 5° C. to crystallize said salt.

A compound selected from the group consisting of:

• a compound of Formula XIV:
• or a pharmaceutically acceptable salt thereof;
• a compound of Formula XV:
• or a pharmaceutically acceptable salt thereof;
• a compound of Formula XVI:
• or a pharmaceutically acceptable salt thereof;
• a compound of Formula XX:
• or a pharmaceutically acceptable salt thereof;
• and
• a compound of Formula XXI:
• or a pharmaceutically acceptable salt thereof.