Three new compounds(1–3), including a chlorine-containing dihydroisocoumarin pericochlorosin A(1), a chlorinated phenol pericochlorosin B(2) and a decalin derivative pericoannosin G(3), were isolated from endophytic ...Three new compounds(1–3), including a chlorine-containing dihydroisocoumarin pericochlorosin A(1), a chlorinated phenol pericochlorosin B(2) and a decalin derivative pericoannosin G(3), were isolated from endophytic fungus Periconia sp. F-31 of the medicinal plant Annona muricata. The structures and absolute configurations were elucidated by extensive spectroscopic methods and calculated electronic circular dichroism analysis. Compound 2 displayed potent anti-HIV activity with IC50 value of 2.2 μM.展开更多
C-glycosylation and C-prenylation are two important C-C-bond forming reactions for preparation,diversification and structural modification of natural/unnatural products with pharmacological activities.Here,we describe...C-glycosylation and C-prenylation are two important C-C-bond forming reactions for preparation,diversification and structural modification of natural/unnatural products with pharmacological activities.Here,we described unprecedented enzymatic cascades to C-glycosylate/prenylate different acyl resorcinol derivatives in stepwise,one-pot reactions by combining two promiscuous enzymes,MiCGT,a C-glycosyltransferase,and AtaPT,a prenyltransferase.Five novel bis-C-alkylated products were obtained and structurally identified by MS and NMR spectroscopic data as well as comparison with the literature.This study provided a potential synthetic strategy for synthesizing structurally novel and diverse compounds bearing both C-glycosyl and C-prenyl moieties by a two-step,enzymatic bis-C-alkylation.展开更多
基金National Natural Science Foundation of China(Grant No.81773607)CAMS Innovation Fund for Medical Sciences(Grant Nos.CIFMS-2018-I2M-3-005 and CIFMS-2016-I2M-2-002)the Drug Inn ovation Major Project(Grant No.2018ZX09711001-001-001)
文摘Three new compounds(1–3), including a chlorine-containing dihydroisocoumarin pericochlorosin A(1), a chlorinated phenol pericochlorosin B(2) and a decalin derivative pericoannosin G(3), were isolated from endophytic fungus Periconia sp. F-31 of the medicinal plant Annona muricata. The structures and absolute configurations were elucidated by extensive spectroscopic methods and calculated electronic circular dichroism analysis. Compound 2 displayed potent anti-HIV activity with IC50 value of 2.2 μM.
基金National Natural Science Foundation of China(Grant Nos.21572277,81573317 and 81703369)CAMS Innovation Fund for Medical Sciences(CIFMS-2016-I2M-3-012)
文摘C-glycosylation and C-prenylation are two important C-C-bond forming reactions for preparation,diversification and structural modification of natural/unnatural products with pharmacological activities.Here,we described unprecedented enzymatic cascades to C-glycosylate/prenylate different acyl resorcinol derivatives in stepwise,one-pot reactions by combining two promiscuous enzymes,MiCGT,a C-glycosyltransferase,and AtaPT,a prenyltransferase.Five novel bis-C-alkylated products were obtained and structurally identified by MS and NMR spectroscopic data as well as comparison with the literature.This study provided a potential synthetic strategy for synthesizing structurally novel and diverse compounds bearing both C-glycosyl and C-prenyl moieties by a two-step,enzymatic bis-C-alkylation.
