Chial Complexes of Mn3+, Fe3+, Ni2+ and Cu2+ were prepared from chiral Schiff Base ligand obtained by condensation of new type methyl 5-(1,1-dimethylethyl)-3-formyl-4-hydroxybenzoate synthesized by this work with (1R,...Chial Complexes of Mn3+, Fe3+, Ni2+ and Cu2+ were prepared from chiral Schiff Base ligand obtained by condensation of new type methyl 5-(1,1-dimethylethyl)-3-formyl-4-hydroxybenzoate synthesized by this work with (1R, 2R)-1,2-diaminocyclohexane. The new chiral ligand and complexes were characterized by elementary analysis, 1H NMR, IR and UV-Vis.展开更多
Polysubstituted cyclopropane was easily constructed from p hydroxyl benzopropene type compounds when catalytic amount PdCl 2 was used. In this paper 1 methyl 2 ethyl 3,3 di(3,5 dimethoxyl 4 hydroxyl)benzocyclopr...Polysubstituted cyclopropane was easily constructed from p hydroxyl benzopropene type compounds when catalytic amount PdCl 2 was used. In this paper 1 methyl 2 ethyl 3,3 di(3,5 dimethoxyl 4 hydroxyl)benzocyclopropane and 1 methyl 2 ethyl 3,3 di(3,5 dihydroxyl 4 methoxyl)benzocyclopropane were first synthesized.展开更多
Two metabolites(A and B) were isolated from a mangrove endophytic fungus Stysanus like sp.(#2492) from the South China Sea.Their structures were elucidated by spectral data as N-(2’-hydroxytetracosyl)-2-amino1,3,4-tr...Two metabolites(A and B) were isolated from a mangrove endophytic fungus Stysanus like sp.(#2492) from the South China Sea.Their structures were elucidated by spectral data as N-(2’-hydroxytetracosyl)-2-amino1,3,4-trihydroxyoctadecane(A) and γ-stearolactone(B).In the primary bioassay,compound B did not exhibit significant inhibitory activity to DNA topoisomerase hTOP Ⅰ,and also had no significant inhibitory activity to tumor cell lines Bel-7402 and NCIH-460.It was the first report that γ-stearolactone(B) isolated from marine fungus as natural product.展开更多
文摘Chial Complexes of Mn3+, Fe3+, Ni2+ and Cu2+ were prepared from chiral Schiff Base ligand obtained by condensation of new type methyl 5-(1,1-dimethylethyl)-3-formyl-4-hydroxybenzoate synthesized by this work with (1R, 2R)-1,2-diaminocyclohexane. The new chiral ligand and complexes were characterized by elementary analysis, 1H NMR, IR and UV-Vis.
文摘Polysubstituted cyclopropane was easily constructed from p hydroxyl benzopropene type compounds when catalytic amount PdCl 2 was used. In this paper 1 methyl 2 ethyl 3,3 di(3,5 dimethoxyl 4 hydroxyl)benzocyclopropane and 1 methyl 2 ethyl 3,3 di(3,5 dihydroxyl 4 methoxyl)benzocyclopropane were first synthesized.
文摘Two metabolites(A and B) were isolated from a mangrove endophytic fungus Stysanus like sp.(#2492) from the South China Sea.Their structures were elucidated by spectral data as N-(2’-hydroxytetracosyl)-2-amino1,3,4-trihydroxyoctadecane(A) and γ-stearolactone(B).In the primary bioassay,compound B did not exhibit significant inhibitory activity to DNA topoisomerase hTOP Ⅰ,and also had no significant inhibitory activity to tumor cell lines Bel-7402 and NCIH-460.It was the first report that γ-stearolactone(B) isolated from marine fungus as natural product.
