Aminologics Co., Ltd.

Aminiologics Co., Ltd.

Won-Sup Kim

Il-Suk Byun

Jung-Ho Lee

Hye-Lim Ga

Hyun-Seok Lee

This invention relates to a method of preparing optically active &#x3b2;-2-thienyl-alanine, and more particularly to a method of preparing optically active &#x3b2;-2-thienyl-L-alanine or optically active &#x3b2;-2-thienyl-D-alanine through an optical resolution reaction using chiral dibenzoyl tartaric acid or a derivative thereof as an optical resolving agent.

Method for preparing thienyl alanine having optical activity

This invention relates to a method of preparing D-arginine, and more particularly to a method of preparing D-arginine by optically resolving DL-arginine using D-3-bromocamphor-8-sulfonic acid or a salt thereof as an optical resolving agent.

Method for preparing D-arginine

Disclosed is a method of preparing D-arginine, wherein D-arginine is obtained by the optical resolution of DL-arginine using D-3-bromocamphor-10-sulfonic acid as an optical resolving agent.

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Seongnam-si, South Korea

Won-Sup Kim