The present invention relates to crystal forms of an oxypyridine amide derivative and a preparation method therefor. In particular, the present invention relates to crystal forms A, B, C, D, E and F of a compound represented by formula (I) and a preparation method therefor. The crystal forms of the compound represented by formula (I) as described in the present invention have good crystal form stability and may be better for clinical use.
本发明涉及一种
羟基吡啶酰胺衍
生物的晶型及其制备方法。具体地,本发明涉及一种由化合物(I)表示的晶型A、B、C、D、E和F,以及其制备方法。本发明所述的化合物(I)的晶型具有良好的晶型稳定性,可能更适合临床使用。