Biomimetic transformation of gentiopicroside was carded out by β-glucosidase at pH 7.0 for 3 days at 37 ℃. Two products, erythrocentaurin and 5,6-dihydro-5-formyl-6-methyl-1H,3H-pyrano[3,4-c]pyran-1-one were isolate...Biomimetic transformation of gentiopicroside was carded out by β-glucosidase at pH 7.0 for 3 days at 37 ℃. Two products, erythrocentaurin and 5,6-dihydro-5-formyl-6-methyl-1H,3H-pyrano[3,4-c]pyran-1-one were isolated and identified by ^1H NMR, ^13C NMR, UV, IR, MS and elemental analyse. The possible mechanisms were discussed.展开更多
基金supported by the National Natural Science Foundation of China(Nos.30070905,20872118)the Key Lab Fund of Shaanxi Province of China(Nos.02JS15,04JS06,05JS53).
文摘Biomimetic transformation of gentiopicroside was carded out by β-glucosidase at pH 7.0 for 3 days at 37 ℃. Two products, erythrocentaurin and 5,6-dihydro-5-formyl-6-methyl-1H,3H-pyrano[3,4-c]pyran-1-one were isolated and identified by ^1H NMR, ^13C NMR, UV, IR, MS and elemental analyse. The possible mechanisms were discussed.
