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A new alkaloid from Castanea mollissima Blume 被引量:4
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作者 Dong Song Zhang hui yuan gao +2 位作者 Xiao Mei Song Zhi Shu Tang Li Jun Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2008年第7期832-834,共3页
A new alkaloid, named 6-(2',3'-dihydroxy-4'-hydroxymethyl-tetrahydro-furan-1'-yl)cyclopentadiene[c]pyrrole-1,3-diol, was isolated from the seeds of Castanea mollissima Blume. The structure was elucidated based o... A new alkaloid, named 6-(2',3'-dihydroxy-4'-hydroxymethyl-tetrahydro-furan-1'-yl)cyclopentadiene[c]pyrrole-1,3-diol, was isolated from the seeds of Castanea mollissima Blume. The structure was elucidated based on spectroscopic evidence including 2D NMR techniques. 展开更多
关键词 Castanea mollissima Blume ALKALOID 6-(2' 3'-Dihydroxy-4'-hydroxylmethyl-tetrahydro-furan-1'-yl)cyclopentadiene[c]pyrrole-1 3-diol
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A new isoquinoline derivative from the leaves of Magnolia sieboldii K.Koch 被引量:3
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作者 Di Wu Ru Ping Wang +2 位作者 Shao Jiang Song Li Jun Wu hui yuan gao 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第12期1446-1448,共3页
Magnoline(1),a new isoquinoline derivative,was isolated from the leaves of Magnolia sieboldii K.Koch(Magnoliaceae).Its structure was elucidated on the basis of spectral analysis including 1D,2D NMR and HR-TOF-MS.
关键词 Magnolia sieboldii K. Koch ISOQUINOLINE Structural identification
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Two new secoiridoid glucosides from Syringa velutina Kom 被引量:2
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作者 Xue Song Feng Yang Qu +4 位作者 Zhao Hua Wu Lei Xu Dong Song Zhang hui yuan gao Li Jun Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2009年第6期702-705,共4页
Chemical investigation of Syringa velutina Kom. led to the isolation of two new secoiridoid glucosides. Their structures were identified as 6'-O-(6, 7-dihyrofoliamenthoyl)-8-epi-longisidic acid (syrveoside A, 1) ... Chemical investigation of Syringa velutina Kom. led to the isolation of two new secoiridoid glucosides. Their structures were identified as 6'-O-(6, 7-dihyrofoliamenthoyl)-8-epi-longisidic acid (syrveoside A, 1) and 6'-O-menthiafoloyl-8-epi-ldngisidic acid (syrveoside B, 2) on the basis of chemical and physicochemical evidence. 展开更多
关键词 Syringa velutina Kom. Secoiridoid glucosides Syrveoside A Syrveoside B
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A new compound with cytotoxic activities from the leaves of Panax ginseng C.A. Meyer 被引量:2
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作者 Li Bo Wang Zhao Hua Wu +3 位作者 hui yuan gao Jian Huang Bo Hang Sun Li Jun Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2008年第7期837-840,共4页
A new compound, 3,6,20(S)-trihydroxy- 12,23-epoxydammar-24-ene,6,20-di-O-β-D-glucopyranoside (1), was isolated from the leaves of Panax ginseng C.A. Meyer, whose structural elucidation was carried out by means of... A new compound, 3,6,20(S)-trihydroxy- 12,23-epoxydammar-24-ene,6,20-di-O-β-D-glucopyranoside (1), was isolated from the leaves of Panax ginseng C.A. Meyer, whose structural elucidation was carried out by means of spectral analysis (including IR, HR- FAB-MS and NMR). This compound showed the moderate cytotoxic activities against U937 and HeLa cells by using the MTT method. 展开更多
关键词 Panax ginseng 3 6 20(S)-Trihydroxy-12 23-epoxy-dammar-24-ene 6 20-Di-O-β-D-glucopyranoside Cytotoxic activity
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Two new lanostane triterpenoids from Abies sachalinensis 被引量:1
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作者 hui yuan gao Jian Huang +2 位作者 Bo Hang Sun Masonori Kuroyanagi Li Jun Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2008年第12期1447-1449,共3页
The continuous chemical investigation on the ethyl acetate (EtOAc) soluble fraction of the MeOH extract afforded two new lanostane triterpenoid derivatives including one with a rearranged lanostane skeleton. They we... The continuous chemical investigation on the ethyl acetate (EtOAc) soluble fraction of the MeOH extract afforded two new lanostane triterpenoid derivatives including one with a rearranged lanostane skeleton. They were identified as 3,4-seco-8-(14→13R)abeo-17,13-friedo-9β-lanosta-4(28), 7,14(30),24-tetraen-26,23-olide-23-hydroxy-3-oic acid (1) and 7,14-mariesa- dien-3oL-hydroxy-25-methoxy-26-oic acid (2). Structural determination of these compounds were carried out by the spectral studies especially by the two digital (2D)-NMR and high-resolution MS experiences. 展开更多
关键词 Abies sachalinensis Rearranged lanostane 17 13-Fdedolanostane
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The chemical constituents of the tissue culture cells of Daphne giraldii cullus
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作者 Zhao Hua Wu Li Bo Wang +4 位作者 hui yuan gao Jian Huang Bo Hang Sun Shu hui Li Li Jun Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2009年第11期1335-1338,共4页
Three compounds were isolated from the tissue culture cells of Daphne giraldii cullus, their structures were identified as daphneolone (1), S-(+)-1-(4-hydroxy-3-methoxyphenyl)-3-hydroxy-5-phenyl-l-pentanone (2... Three compounds were isolated from the tissue culture cells of Daphne giraldii cullus, their structures were identified as daphneolone (1), S-(+)-1-(4-hydroxy-3-methoxyphenyl)-3-hydroxy-5-phenyl-l-pentanone (2), S-(+)-1-(4-methoxyphenyl)-3- hydroxy-5-phenyl-l-pentanone (3), and among them, 2 was a new compound, 3 was a novel natural product. 展开更多
关键词 Tissue culture cells Daphne giraldii cullus Chemical constituents Structural identification
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