SALTS OF CYNNAMIDE COMPOUND OR SOLVATES THEREOF

摘要

The invention provides crystals of dihydrochloride monohydrate of the compound of the following formula having an Aß production inhibiting effect which crystals are characterized by exhibiting a diffraction peak at an angle of diffraction (2? ± 0.2°) of 10.9° in powder X-ray diffractometry. Further, the invention also provides the compound in the form of various salts, crystals and noncrystalline substances which are suitable for the development of drugs.