The present invention relates to new crystalline forms of a purine derivative which exhibits excellent anti-tumour activity. The invention also relates to a pharmaceutical composition containing said crystalline forms as an active ingredient, and use thereof in the prevention or treatment of disease. The invention further relates to a process for preparing the crystalline forms.
本发明涉及表现出优异抗肿瘤活性的
嘌呤衍
生物的新结晶形式。该发明还涉及一种含有所述结晶形式作为活性成分的药物组合物,以及在预防或治疗疾病中的使用。该发明还涉及一种制备这些结晶形式的方法。