supported by the Natural Science Foundation of Heilongjiang(No.D201207)
The present study carried out a phytochemical investigation on the root barks of Dictamnus dasycarpus Turcz, leading to the isolation and characterization of two new aromatic ring butyrolactone derivatives, dasycarpus...
supported by National Natural Science Foundation of China (Nos.41176120 and 30973627);the National High Technology Research and Development Program of China (No.2013AA092901);the Program for New Century Excellent Talents in University (No.NCET12-0499);Promotive Research Fund for Excellent Young and Middle-Aged Scientists of Shandong Province (BS 2010HZ027);the Public Projects of State Oceanic Administration (No. 2010418022-3);the Program for Changjiang Scholars and Innovative Research Team in University (No.IRT0944)
A new butyrolactone derivative,namely butyrolactone Ⅷ (1),and six known butyrolactones (2-7) were separated from the ethyl acetate (EtOAc) extract of the fermentation broth of a fungus,Aspergillus terreus MXH-2...
Supported by the Scientific Research Fund of Heilongjiang Provincial Education Department (11531028);Heilongjiang Postdoctoral Fund (LBH-Z11245)
The somatic cell nuclear transfer (SCNT) technique has been applied successfully in a range of mammalian species giving rise to offspring, however, the efficiency of development to term has remained low. Oocyte meio...
Two new α,β-unsaturated butyrolactone derivatives, 4-(4″-hydroxybenzyl)-3-(3′-hydroxy-phenethyl)furan-2(5H)-one (1) and 3-(3′-hydroxyphenethyl)furan-2(5H)-one (2), together with one known phenolic compound (3), w...
When the natural lignan hydroxymatairesinol ( 1 ) was treated with an alkaline aqueous solution, it partially rearranged to isomeric forms of a lariciresinol-type butyrolactone lignan. The two major diastereomers form...
The Science and Research Foundation of Education Commission of Hunan Province
Cyclopropylamine is synthesized with γ butyrolactone and isopropanol by five steps of ring opening esterification, cyclization, hydrolysis, acylation and Hofmann degradation. Cyclization and hydrolysis are key steps ...
A pair of Z and E isomers of cyclization of γ-ketoacid 7, which was prepared in six steps from 2,5-dimethoxyphenyl acetic acid 1, gave a pair of Z(20%) and E (4%) isomers of (2,5-dimethoxyphenyl)-methylene-butyrolact...
A novel 1,6-asymmetric induction has been observed in the iodolactonization of γ,δ-unsa- turated amides. The optically active γ-butyrolactone was synthesized by employing iodolactonization reaction as a key step.