Inventor
LEE DOO-BYUNG
KR7 patents
Patents
7 patentsUS11623925B2Apr 11, 2023
Processes for preparing a diaminopyrimidine derivative or acid addition salt thereof
YUHAN CORP0 citations59
US11434224B2Sep 6, 2022
Processes for preparing a diaminopyrimidine derivative or acid addition salt thereof
YUHAN CORP0 citations59
US11198684B2Dec 14, 2021
Intermediates useful for the synthesis of a selective inhibitor against protein kinase and processes for preparing the same
YUHAN CORP0 citations58
US6706888B2Mar 16, 2004
Processes for preparing imidazole derivatives and salts thereof
YUHAN CORP2 citations56
US10858353B2Dec 8, 2020
Intermediates useful for the synthesis of aminopyrimidine derivatives, process for preparing the same, and process for preparing aminopyrimidine derivatives using the same
YUHAN CORP0 citations48
US7521565B2Apr 21, 2009
Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazole-1-yl)methyl]-4H-carbazol-4-one or its salt
YUHAN CORP0 citations48
US12227478B2Feb 18, 2025
Processes for preparing (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3-amine or a salt thereof and processes for preparing tofacitinib using the same
YUHAN CORP0 citations44