BUKWANG PHARMACEUTICAL CO., LTD. (Republic of Korea)
Inventor
Yoo, Hee Won
Um, Jung Yoon
Jun, Hun
Abstract
The present invention relates to a treatment agent for a coronavirus, and, more specifically, to a use for the purpose of treating coronavirus infection by administering a drug or a pharmaceutical composition comprising L-nucleoside represented by chemical formula 1.
A61K 31/7072 - Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides containing six-membered rings with nitrogen as a ring hetero atom containing condensed or non-condensed pyrimidines having oxo groups directly attached to the pyrimidine ring, e.g. cytidine, cytidylic acid having two oxo groups directly attached to the pyrimidine ring, e.g. uridine, uridylic acid, thymidine, zidovudine
A61K 31/7076 - Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides containing six-membered rings with nitrogen as a ring hetero atom containing condensed or non-condensed pyrimidines containing purines, e.g. adenosine, adenylic acid
BUKWANG PHARMACEUTICAL CO., LTD. (Republic of Korea)
Inventor
Lee, Kwang Ok
Lee, Kyung Hwa
Jeong, Eun Ju
Abstract
The present disclosure relates to a method for preparing tolimidone on large scale with maintaining high purity and uniform particle size distribution, and more specifically, a method suitable for preparing tolimidone on industrially large scale by using tetrabutyl ammonium bromide catalyst and recrystallization in ethanol, which can prepare highly pure tolimidone in a time shorter than prior arts while maintaining water content and particle size distribution constantly.
BUKWANG PHARMACEUTICAL CO., LTD. (Republic of Korea)
Inventor
Lee, Kwang Ok
Lee, Kyung Hwa
Jeong, Eun Ju
Abstract
The present disclosure relates to a method for preparing tolimidone on large scale with maintaining high purity and uniform particle size distribution, and more specifically, a method suitable for preparing tolimidone on industrially large scale by using tetrabutyl ammonium bromide catalyst and recrystallization in ethanol, which can prepare highly pure tolimidone in a time shorter than prior arts while maintaining water content and particle size distribution constantly.
BUKWANG PHARMACEUTICAL CO., LTD. (Republic of Korea)
Inventor
Lee, Jun
Lee, Young Hun
Park, Byung Sun
Yoo, Hee Won
Abstract
Disclosed are: a compound of chemical formula 1; a pharmaceutically acceptable salt or stereoisomer thereof; and a pharmaceutical composition containing the same. The compound of chemical formula 1 or the pharmaceutically acceptable salt or stereoisomer thereof acts as a multi-target kinase inhibitor, thereby being usable in the prevention or treatment of cancers or immune-related diseases such as rheumatoid arthritis, Sjögren's syndrome, psoriasis, systemic lupus erythematosus, atopy, asthma and multiple sclerosis.