Hyparillums A(1)and B(2),two previously unidentified polycyclic polyprenylated acylphloroglucinols(PPAPs)with intricate architectures,were isolated from Hypericum patulum Thunb.Hyparillum A was the first PPAP with eig...Hyparillums A(1)and B(2),two previously unidentified polycyclic polyprenylated acylphloroglucinols(PPAPs)with intricate architectures,were isolated from Hypericum patulum Thunb.Hyparillum A was the first PPAP with eight-carbon rings based on an unprecedented 6/6/5/6/6/5/6/4 octocyclic system featuring a rare heptacyclo[10.8.1.11,10.03,8.08,21.012,19.014,17]docosane core.In contrast,hyparillum B featured a novel heptacyclic architecture(6/6/5/6/6/5/5)based on a hexacyclo[9.6.1.11,9.03,7.07,18.011,16]nonadecane motif.Furthermore,hyparillums A and B demonstrated promising inhibitory effects on the proliferation of murine splenocytes stimulated by anti-CD3/anti-CD28 monoclonal antibodies and lipopolysaccharide,exhibiting half-maximal inhibitory concentration(IC50)values ranging from 6.13±0.86 to 12.69±1.31μmol·L−1.展开更多
基金supported by the Program for Changjiang Scholars of Ministry of Education of the People’s Republic of China(No.T2016088)the National Natural Science Foundation for Distinguished Young Scholars(No.81725021)+5 种基金the National Science and Technology Project of China(No.2018ZX09201001-001-003)the National Natural Science Foundation of China(Nos.82003633,32100321,and 32300335)the Research and Development Program of Hubei Province(No.2020BCA058)the Open Foundation of Hubei Key Laboratory of Wudang Local Chinese Medicine Research(No.WDCM2022003)the National Natural Science Foundation of Hubei Province(No.2023AFB530)the Knowledge Innovation Project of Wuhan Science and Technology Bureau(No.2023020201020534).
文摘Hyparillums A(1)and B(2),two previously unidentified polycyclic polyprenylated acylphloroglucinols(PPAPs)with intricate architectures,were isolated from Hypericum patulum Thunb.Hyparillum A was the first PPAP with eight-carbon rings based on an unprecedented 6/6/5/6/6/5/6/4 octocyclic system featuring a rare heptacyclo[10.8.1.11,10.03,8.08,21.012,19.014,17]docosane core.In contrast,hyparillum B featured a novel heptacyclic architecture(6/6/5/6/6/5/5)based on a hexacyclo[9.6.1.11,9.03,7.07,18.011,16]nonadecane motif.Furthermore,hyparillums A and B demonstrated promising inhibitory effects on the proliferation of murine splenocytes stimulated by anti-CD3/anti-CD28 monoclonal antibodies and lipopolysaccharide,exhibiting half-maximal inhibitory concentration(IC50)values ranging from 6.13±0.86 to 12.69±1.31μmol·L−1.
