Soytong, Kasem
Loading...
Preferred name
Soytong, Kasem
Alternative Name
Soytong, K.
Email
kasem.so@kmitl.ac.th
3 results
Now showing 1 - 3 of 3
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Meroditerpene pyrone, tryptoquivaline and brasiliamide derivatives from the fungus Neosartorya pseudofischeri(2019-09-01); Kanokmedhakul, SomdejTwo new meroditerpene pyrones, chevalone F (1) and 11-hydroxychevalone E (2), a new tryptoquivaline analog, tryptoquivaline V (3) and a new brasiliamide analog, brasiliamide G (4), together with thirteen known compounds, chevalones A-C (5–7), chevalone E (8), 11-hydroxychevalone C (9), pyripyropene A (10), isochaetominine C (11), pyrrolobenzoxazine terpenoids CJ-12662 (12) and CJ-12663 (13), fischerindoline (14), eurochevalierine (15), 1,4-diacetyl-2,5-dibenzylpiperazine-3,7′′-oxide (16) and lecanorin (17) were isolated from the fungus Neosartorya pseudofischeri. Their structures were established on the basis of spectroscopic evidence. Compound 2 showed weak antibacterial activity against Escherichia coli and Salmonella enterica serovar Typhimurium, whereas compounds 7, 12, 13 and 15 showed antibacterial activity against Bacillus cereus and Staphylococcus aureus. In addition, compounds 13 and 14 showed cytotoxicity against KB and MCF-7 cancer cell lines, as well as the Vero cell line. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, New Pyrrolobenzoxazine Sesquiterpenoid Derivatives from the Fungus Talaromyces trachyspermus(2021-07-13); ; Soytong, MayamorThree new pyrrolobenzoxazine sesquiterpenoids, talatrachyoxazines A-C (1-3), together with fourteen known compounds (4-17), were isolated from the fungus Talaromyces trachyspermus EU23. Their structures were identified by spectroscopic evidence and mass spectrometry. The absolute configurations of 1-3 were determined by NOESY data and comparison of their calculated and experimental electronic circular dichroism (ECD) spectra. Compound 1 showed cytotoxic activity against HelaS3, KB, HT-29, MCF-7, and HepG2 cell lines with IC50 values of 7, 11, 10, 12, and 10 μM, respectively. Compounds 1 and 14 showed weak antibacterial activity against the gram-positive bacteria Bacillus cereus and Bacillus subtilis, while 1-3 and 14 showed weak antibacterial activity against the gram-negative bacterium Pseudomonas aeruginosa. In addition, compound 1 showed weak antibacterial activity against Escherichia coli. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Meroterpenoid pyrones, alkaloid and bicyclic brasiliamide from the fungus Neosartorya hiratsukae(2020-04-01); Yahuafai, JantanaTwo new meroterpenoid pyrones, chevalone G (1) and aszonapyrone C (2), a new indole alkaloid, 7-chlorofischerindoline (3) and a new bicyclic brasiliamide, brasiliamide H (4), together with sixteen known compounds, 5–20 were isolated from the fungus Neosartorya hiratsukae. Their structures were established on the basis of spectroscopic evidence. The antibacterial activity and the cytotoxic activity of new compounds were evaluated.