The present invention provides novel crystal forms of arylalkylamine compounds. Specifically, the novel crystal forms of 4-(3S-(1R-(1-naphthyl)ethylamino)pyrrolidin-1-yl)phenylacetic acid have excellent stability and therefore are useful as pharmaceutical ingredients. The present invention also provides industrially advantageous processes for producing the arylalkylamine compounds.
本发明提供了新型芳基烷基胺化合物的晶体形式。具体地,4-(3S-(1R-(1-
萘基)乙基
氨基)
吡咯烷-1-基)
苯乙酸的新型晶体形式具有优异的稳定性,因此可以作为药用成分。本发明还提供了工业上有利的生产芳基烷基胺化合物的方法。