Synthesis and biological evaluation of bergenin derivatives as new immunosuppressants

2021 ◽  
Author(s):  
Lihua Deng ◽  
Cheng-Cheng Song ◽  
Youhong Niu ◽  
Qin Li ◽  
Meng Wang ◽  
...  

Bergenin, which is isolated from Bergenia species, exhibits various pharmacological properties. In the search for new type of immunosuppressants, a series of bergenin derivatives were designed and synthesized, and their...

MedChemComm ◽  
2017 ◽  
Vol 8 (5) ◽  
pp. 907-916 ◽  
Author(s):  
Jun-Rong Duan ◽  
Han-Bo Liu ◽  
Ponmani Jeyakkumar ◽  
Lavanya Gopala ◽  
Shuo Li ◽  
...  

Synthesis of a series of Schiff base-bridged tetrahydroprotoberberine triazoles as a new type of potential antimicrobial agents, and preliminary interactions with DNA indicated the possible interaction mechanism.


MedChemComm ◽  
2016 ◽  
Vol 7 (10) ◽  
pp. 1988-1994 ◽  
Author(s):  
Dinesh Addla ◽  
Si-Qi Wen ◽  
Wei-Wei Gao ◽  
Swetha Kameswari Maddili ◽  
Ling Zhang ◽  
...  

Synthesis of a series of carbazole aminothiazoles as a new type of potential antimicrobial agents, and preliminary interactions with DNA indicated a possible intercalation mechanism.


2017 ◽  
Vol 60 (6) ◽  
pp. 769-785 ◽  
Author(s):  
Wei-Wei Gao ◽  
Syed Rasheed ◽  
VijaiKumarReddy Tangadanchu ◽  
Yi Sun ◽  
Xin-Mei Peng ◽  
...  

2019 ◽  
Vol 44 (1-2) ◽  
pp. 31-41
Author(s):  
Asmaa Kamal Mourad ◽  
Abdelmoneim Abdelsalam Makhlouf ◽  
Ahmed Yousef Soliman ◽  
Samar Ahmed Mohamed

Phthalazine and phthalazinone derivatives are important owing to their significant biological activities and pharmacological properties. Herein, a benzoic acid derivative (2), a benzoxazin-1-one derivative (3), and an oxophthalazin-2(1 H)-yl)acetohydrazide (13) are utilized as precursors to construct a novel series of phthalazinones bearing various valuable functional groups in excellent yields via several simple and promising approaches. Finally, the antimicrobial activity of the newly synthesized phthalazines is screened against different microbial strains; namely, Gram-negative and Gram-positive bacteria utilizing Amoxicillin as a standard drug.


Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5300
Author(s):  
Corentin Bon ◽  
Yang Si ◽  
Melanie Pernak ◽  
Magdalena Barbachowska ◽  
Eva Levi-Acobas ◽  
...  

Histone methyltransferase DOT1L catalyzes mono-, di- and trimethylation of histone 3 at lysine residue 79 (H3K79) and hypermethylation of H3K79 has been linked to the development of acute leukemias characterized by the MLL (mixed-lineage leukemia) rearrangements (MLLr cells). The inhibition of H3K79 methylation inhibits MLLr cells proliferation, and an inhibitor specific for DOT1L, pinometostat, was in clinical trials (Phase Ib/II). However, the compound showed poor pharmacological properties. Thus, there is a need to find new potent inhibitors of DOT1L for the treatment of rearranged leukemias. Here we present the design, synthesis, and biological evaluation of a small molecule that inhibits in the nM level the enzymatic activity of hDOT1L, H3K79 methylation in MLLr cells with comparable potency to pinometostat, associated with improved metabolic stability and a characteristic cytostatic effect.


2007 ◽  
Vol 18 (1) ◽  
pp. 216-230 ◽  
Author(s):  
Martin Walther ◽  
Christian M. Jung ◽  
Ralf Bergmann ◽  
Jens Pietzsch ◽  
Katrin Rode ◽  
...  

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