The invention relates to (1) a method for preparing 7-cyclopentyl-2 - (5-piperazine-1-yl-pyridine-2-amino) - 7H-pyrrolo [2,3-d] pyrimidine-6-carboxylic acid dicarboxylic acid dicarboxylic acid dicarboxylate and its salts； (2) 7-cyclopentyl-2-yl (5-piperazine-1-yl-pyridine-2-amino) - 7H-pyrrolo [2], Novel salts of 3-D] pyrimidine-6-carboxylic acid dicarboxylic acid dicarboxylate； (3) pharmaceutical compositions containing the substance； and (4) therapeutic methods using the substance.本發明涉及(1)製備7‑環戊基‑2‑(5‑哌嗪‑1‑基‑吡啶‑2‑基氨基)‑7H‑吡咯并[2,3‑d]嘧啶‑6‑羧酸二甲酰胺及其鹽的方法；(2)7‑環戊基‑2‑(5‑哌嗪‑1‑基‑吡啶‑2‑基氨基)‑7H‑吡咯并[2,3‑d]嘧啶‑6‑羧酸二甲酰胺的新穎鹽；(3)包含所述物質的藥物組合物；及(4)使用所述物質的治療方法。
