The present invention relates to a new crystalline form of platelet aggregation inhibitor (+) - (S) - methyl - 2 - (2 - chlorophenyl) - (6 - 4 - Delta - theta [3, 2 - c] PI Delta - 5 - acetic acid EC), horseshoe sound. (1) the formation of salts is in the form of 1, 2 and 3.The invention also relates to a method for preparing pharmaceutical compositions in this form, including the use of these forms, these forms and To configure.Pharmaceutical compositions available, especially for inhibiting platelet aggregation, prevention or treatment, or theta_management Dimethyl ether, alpha theta____, alpha theta___, alpha theta__stroke, myocardial infarction, ischemic stroke, Q-free myocardial infarction, atherosclerosis, IP It is also known as unstable angina pectoris.The invention also relates to a method for treating the above diseases. Formula (1).
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