Solid forms of an sgc stimulator

A process for preparing crystalline free form Form A of Compound I, comprising:

• a. dissolving crystalline free form Form E in ethyl acetate at a minimum of 70° C. to obtain a solution;
• b. filtering said solution and stirring the resulting filtrate at 20 to 25° C. over 16 hours to form a slurry;
• c. concentrating and filtering, and drying said slurry under vacuum.

A process for preparing crystalline free form Form A of Compound I, comprising:

• a. dissolving crude Compound I in ethyl acetate at a minimum of 70° C. to obtain a solution;
• b. filtering said solution and stirring the resulting filtrate at 20 to 25° C. over 16 hours to form a slurry;
• c. concentrating and filtering, and drying said slurry under vacuum.

A process for preparing crystalline free form Form A of Compound I, comprising:

• a. heating crude Compound I in DMSO at a minimum of 60° C. to form a solution;
• b. adding water to form a slurry and
• c. filtering said slurry to isolate crystalline free form Form A.

A process for preparing crystalline free form Form D of Compound I, comprising heating any one of crystalline free forms Form F, Form B, Form E, Form G, or Form H, or mixtures thereof, neat at 180° C.

A process for preparing crystalline free form Form F of Compound I, comprising heating Form A neat at 160° C.

A process for preparing crystalline free form Form G of Compound I, comprising:

• a. mixing crude Compound I in acetone at room temperature for about 2 hours to form a slurry;
• and
• b. filtering said slurry and drying under vacuum.

A process for preparing crystalline free form Form G of Compound I, comprising:

• a. stirring Form H in acetone at room temperature for about 2 hours to form a slurry;
• and
• b. filtering said slurry and drying under vacuum.