(+)-muqubilone B methyl ester 在
palladium on activated charcoal 、 氢气 作用下,
以
乙醇 为溶剂,
20.0 ℃
、101.33 kPa
条件下,
反应 1.0h,
以4 mg的产率得到(+)-Muqubilone B Diol
参考文献:
名称:
The Marine Sponge Diacarnus bismarckensis as a Source of Peroxiterpene Inhibitors of Trypanosoma brucei, the Causative Agent of Sleeping Sickness
摘要:
Human African trypanosomiasis, also known as African sleeping sickness, is a neglected tropical disease with inadequate therapeutic options. We have launched a collaborative new lead discovery venture using our repository of extracts and natural product compounds as input into our growth inhibition primary screen against Trypanosoma brucei. Careful evaluation of the spectral data of the natural products and derivatives allowed for the elucidation of the absolute configuration (using the modified Mosher's method) of two new peroxiterpenes: (+)-muqubilone B (1a) and (-)-ent-muqubilone (3a). Five known compounds were also isolated: (+)-sigmosceptrellin A (4a), (+)-sigmosceptrellin A methyl ester (4b), (-)-sigmosceptrellin B (5), (+)-epi-muqubillin A (6), and (-)-epi-nuapapuin B methyl ester (7). The isolated peroxiterpenes demonstrated activities in the range IC50 = 0.2-2 mu g/mL.
The Marine Sponge Diacarnus bismarckensis as a Source of Peroxiterpene Inhibitors of Trypanosoma brucei, the Causative Agent of Sleeping Sickness
摘要:
Human African trypanosomiasis, also known as African sleeping sickness, is a neglected tropical disease with inadequate therapeutic options. We have launched a collaborative new lead discovery venture using our repository of extracts and natural product compounds as input into our growth inhibition primary screen against Trypanosoma brucei. Careful evaluation of the spectral data of the natural products and derivatives allowed for the elucidation of the absolute configuration (using the modified Mosher's method) of two new peroxiterpenes: (+)-muqubilone B (1a) and (-)-ent-muqubilone (3a). Five known compounds were also isolated: (+)-sigmosceptrellin A (4a), (+)-sigmosceptrellin A methyl ester (4b), (-)-sigmosceptrellin B (5), (+)-epi-muqubillin A (6), and (-)-epi-nuapapuin B methyl ester (7). The isolated peroxiterpenes demonstrated activities in the range IC50 = 0.2-2 mu g/mL.