专利检索 ap:("YONSUNG FINE CHEMICAL CO., LTD.") AND inv:"Changyoung Oh" 第 1 页

1.

发明授权
Method for preparing treprostinil and intermediate therefor 有权

公开(公告)号：US10800737B2

公开(公告)日：2020-10-13

申请号：US16096766

申请日：2017-04-18

申请人： YONSUNG FINE CHEMICAL CO., LTD.

发明人： Hyun Ik Shin , Hyoseon Lee , Kyung Jin Lee , Kee Young Lee , Changyoung Oh

IPC分类号： C07C35/37 , C07C405/00 , C07D317/44 , C07C59/72 , C07B51/00

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

2.

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

公开(公告)号：US10538539B2

公开(公告)日：2020-01-21

申请号：US16070669

申请日：2017-01-13

申请人： YONSUNG FINE CHEMICAL CO., LTD.

发明人： Hyun Ik Shin , Kee Young Lee , Changyoung Oh

IPC分类号： C07F7/18

摘要： 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.

3.

发明授权
Intermediate for preparing eribulin mesylate and process for preparing the same 有权

公开(公告)号：US11142509B2

公开(公告)日：2021-10-12

申请号：US16762355

申请日：2018-11-08

申请人： YONSUNG FINE CHEMICAL CO., LTD.

发明人： Hyunik Shin , Keeyoung Lee , Changyoung Oh

IPC分类号： C07D407/12 , C07D307/12

摘要： 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.