abstract |
PROBLEM TO BE SOLVED: To provide a novel and improved production method of a compound for treating a disease, and a crystal form. SOLUTION: The compound of the formula (I) has an X-ray diffraction pattern of 7.5, 12.4, 15.1, 18.5, 18.7, 22.9, 24.7. It is a compound characterized by showing a peak maximum value of a 2-seater angle at 26.5 and 26.5. [Selection diagram] None |