4-[5-(pyridin-4-yl)-1H-1,2,4-triazol-3-yl]pyridine-2-carbonitrile crystalline polymorph and production method therefor
申请人:FUJIYAKUHIN CO., LTD.
公开号:US09199970B2
公开(公告)日:2015-12-01
To provide crystal polymorphs of 4-[5-(pyridin-4-yl)-1H-1,2,4-triazol-3-yl]pyridine-2-carbonitrile, which is a useful pharmaceutical, and a production method therefor. Through purification of a corresponding salt, recrystallization, or storage under humidified conditions, three different crystal forms; i.e., crystalline polymorphs of 4-[5-(pyridin-4-yl)-1H-1,2,4-triazol-3-yl]pyridine-2-carbonitrile are produced.
提供4-[5-(吡啶-4-基)-1H-1,2,4-三唑-3-基]吡啶-2-甲腈的晶型多形,该化合物是一种有用的药物,并提供其制备方法。通过对相应盐的纯化、重结晶或在潮湿条件下储存,可以产生三种不同的晶体形态,即4-[5-(吡啶-4-基)-1H-1,2,4-三唑-3-基]吡啶-2-甲腈的晶体多形。