The disclosure provides a method for synthesizing free base forms of (2R,6R)-hydroxynorketamine (HNK) and (2S,6S)-hydroxynorketamine. In an embodiment synthesis of (2R,6R)-hydroxynorketamine (HNK) includes preparation of (R)-norketamine via chiral resolution from racemic norketamine via a chiral resolution with L-pyroglutamic acid. The disclosure also provided crystal forms of the corresponding (2R,6R)-hydroxynorketamine (HNK) and (2S,6S)-hydroxynorketamine hydrochloride salts.
本公开提供了一种合成游离碱形式的 (2R,6R)-hydroxynorketamine (HNK) 和 (2S,6S)-hydroxynorketamine 的方法。在一个实施方案中,(2R,6R)-羟基
炔诺酮胺(HNK)的合成包括通过外消旋
炔诺酮胺与
L-焦谷氨酸的手性解析,通过手性解析制备 (R)-
炔诺酮胺。该公开还提供了相应的 (2R,6R)-hydroxynorketamine (HNK) 和 (2S,6S)-hydroxynorketamine 盐酸盐的晶体形式。