Wu, Zhibing published the artcileSynthesis, Biological Evaluation, and 3D-QSAR Studies of N-(Substituted pyridine-4-yl)-1-(substituted phenyl)-5-trifluoromethyl-1H-pyrazole-4-carboxamide Derivatives as Potential Succinate Dehydrogenase Inhibitors, SDS of cas: 18437-58-6, the publication is Journal of Agricultural and Food Chemistry (2021), 69(4), 1214-1223, database is CAplus and MEDLINE.
To develop more potential succinate dehydrogenase (SDH) inhibitors, we designed and synthesized a novel series of N-(substituted pyridine-4-yl)-1-(substituted phenyl)-5-trifluoromethyl-1H-pyrazole-4-carboxamide derivatives, I [R1 = H, CH3, F, Cl; R2 = 2-pyridinyl, 4-pyridinyl, 2-CH3-4-pyridinyl, etc.]. The bioassay results demonstrated that some title compounds exhibited excellent antifungal activity against four tested phytopathogenic fungi (Gibberella zea, Fusarium oxysporum, Cytospora mandshurica, and Phytophthora infestans). The EC50 values were 1.8μg/mL for I [R1 = Cl; R2 = 4-pyridinyl] against G. zeae, 1.5 and 3.6μg/mL for I [R1 = Cl; R2 = 2-CH3-4-pyridinyl] against F. oxysporum and C. mandshurica, resp., and 6.8μg/mL for I [R1 = F; R2 = 2-CH3-4-pyridinyl] against P. infestans. The SDH enzymic activity testing revealed that the IC50 values of I [R1 = H; R2 = 4-pyridinyl], I [R1 = CH3; R2 = 4-pyridinyl], I [R1 = F; R2 = 2-CH3-4-pyridinyl], and penthiopyrad were 12.5, 135.3, 6.9, and 223.9μg/mL, resp. The mol. docking results of this series of title compounds with SDH model demonstrated that the compounds could completely locate inside of the pocket, the body fragment formed H bonds, and the Ph ring showed a π-π interaction with Arg59, suggesting that these novel 5-trifluoromethyl-pyrazole-4-carboxamide derivatives might target SDH. These results provided a benchmark for understanding the antifungal activity against the phytopathogenic fungus P. infestans and prompt us to discover more potent SDH inhibitors.
Journal of Agricultural and Food Chemistry published new progress about 18437-58-6. 18437-58-6 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 4-Amino-2-picoline, and the molecular formula is C5H5F3O2, SDS of cas: 18437-58-6.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem