申请人:Pfizer Inc.
公开号:US06350751B1
公开(公告)日:2002-02-26
The invention relates anhydrous para-toluenesulphonic acid salts of 3-ethyl-5-[5-(4-ethylpiperazin-1-ylsulphonyl)-2-(2-methoxyethoxy) pyridin-3-yl]-2-(pyridin-2-yl)methyl-2,6-dihydro-7H-pyrazolo [4,3-d]pyrimidin-7-one having the formula (I):
a process for preparing compounds (I), pharmaceutical compositions containing (I) and use of (I) in medicine.
该发明涉及具有以下式(I)的3-乙基-5-[5-(4-乙基哌嗪-1-基磺酰基)-2-(2-甲氧基乙氧基)吡啶-3-基-2-(吡啶-2-基)甲基-2,6-二氢-7H-吡唑并[4,3-d]嘧啶-7-酮的无水对甲苯磺酸盐:制备化合物(I)的方法,含有(I)的药物组合物以及在医学中使用(I)。