Yonsung Fine Chemical Co., Ltd.

Changyoung Oh

Kee Young Lee

Hyunik Shin

Hyun Ik Shin

Hyoseon Lee

Keeyoung Lee

Yong Hyun Kim

Kyung Jin Lee

Jae Eun Joo

The present invention relates to a process for preparing a compound of formula (6) which is an intermediate for the preparation of eribulin mesylate with high yields and high purity, and an intermediate therefor.

Intermediate for preparing eribulin mesylate and process for preparing the same

The present invention relates to a process for preparing an intermediate for the preparation of eribulin mesylate with high yields, and an intermediate therefor.

The present invention relates to a cost-effective and efficient method for preparing treprostinil with high purity, and an intermediate therefor.

Method for preparing treprostinil and intermediate therefor

A method for preparing a 3-((2S,5S)-4-methylene-5-(3-oxopropyl)tetrahydrofuran-2-yl)propanol derivative by a simple process with high yields, and an intermediate useful for the method.

Method for preparing 3-((2S, 5S)-4-methylene-5-(3-oxopropyl)tetrahydrofurane-2-yl) propanol derivative, and intermediate therefor

The present invention relates to a process for preparing a prostaglandin derivative and an intermediate therefor. In accordance with the present invention, the prostaglandin F (PGF) derivative can be efficiently prepared with high purity by removing the protecting group of a protected prostaglandin E (PGE) derivative obtained from conjugate addition and then stereoselectively reducing the ketone group on the cyclopentanone ring of the PGE derivative.

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Seongnam-si, South Korea

Changyoung Oh