A highly stable crystal of (1S)-1,5-anhydro-1-[5-(4-(1E)-4-[(1-[2-(dimethylamino)ethyl]amino}-2-methyl-1-oxopropan-2-yl)amino]-3,3-dimethyl-4-oxobut-1-en-1-yl}benzyl)-2-methoxy-4-(propan-2-yl)phenyl]-D-glucitol, and a process for producing the crystal are provided. Specifically, an ethanolate having the following physical properties, and a plurality of other crystal forms transformed from the ethanolate are provided:
(a) Having peaks at 2θ=5.9 degrees, 17.1 degrees, 17.6 degrees and 21.5 degrees in X-ray powder diffraction (Cu—Kα);
(b) Showing characteristic absorption bands at 3538 cm
−1
, 3357 cm
−1
, 2964 cm
−1
, 1673 cm
−1
, 1634 cm
−1
and 1505 cm
−1
in an infrared absorption spectrum; and
(c) Having a melting point in a vicinity of 111° C.
提供了(1S)-1,5-
脱水-1-[5-(4-(1E)-4-[(1-[2-(
二甲氨基)乙基]
氨基}-
2-甲基-1-
氧代丙酰基)
氨基]-3,3-二
甲基-4-
氧代丁-1-
烯-1-基}
苯甲基)-
2-甲氧基-4-(
异丙基)
苯基]-
D-葡萄糖醇的高度稳定的晶体以及制备该晶体的方法。具体而言,提供了以下物理性质的
乙醇酸盐和从
乙醇酸盐转化而来的多种晶体形式:(a) 在X射线粉末衍射(Cu-Kα)中,在2θ=5.9度、17.1度、17.6度和21.5度处具有峰;(b) 在红外吸收光谱中显示出3538 cm−1、3357 cm−1、2964 cm−1、1673 cm−1、1634 cm−1和1505 cm−1的特征吸收带;以及(c) 具有接近111℃的熔点。