The present invention relates to two new crystal forms of the salt of trans-5-chloro-2- methyl-2,3,3a,12b-tetrahydro-1H-dibenzo[2,3:6,7]oxepino[4,5-c]pyrrolewith maleic acid, processes for preparing thereof and compositions comprising thereof. These new crystal forms of the salt of trans-5-chloro-2-methyl-2,3,3a,12b-tetrahydro-1H- dibenzo[2,3:6,7]oxepino[4,5-c]pyrrolewith maleic acid are stable under micronization and show an improved water solubility when compared to other asenapine maleate crystalline forms described in the prior art, such as the orthorhombic form (form L) and the monoclinic form (form H).
本发明涉及一种与
马来酸形成的trans-5-
氯-2-甲基-2,3,3a,12b-四氢-1H-二苯并[2,3:6,7]氧杂-4,5-c-哌咯烯盐的两种新晶型,以及其制备方法和含有其的组合物。与先前描述的其他阿塞那平
马来酸晶型(如正交晶型(L形)和单斜晶型(H形))相比,这些与
马来酸形成的trans-5-
氯-2-甲基-2,3,3a,12b-四氢-1H-二苯并[2,3:6,7]氧杂-4,5-c-哌咯烯盐的新晶型在微粉化时稳定,并且显示出改善的
水溶解性。