云南高校图书馆联盟文献共享服务平台- SPIROKETAL

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Isolation, biosynthesis, and biological activity of rubromycins derived from actinomycetes被引量：2: 《Engineering Microbiology》2022年第3期37-46,共10页Ping Lin Xue Li Yuchen Xin Hongying Li Gang Li Hongxiang Lou; This work was financially supported by the National Natural Science Foundation of China(No.81903494);the Scientific Research Foun-dation of Qingdao University.; Natural occurring aromatic polyketides from actinomycetes indicate a structurally and functionally diverse fam-ily of polycyclic polyphenols.Some of them are consequently suggested as lead structures for drug developm...; 关键词：Natural products Rubromycins SPIROKETAL BIOSYNTHESIS Bioactivity

Three new decarbonyl prenylphloroglucinols bearing unusual spirost subunits from Hypericum scabrum and their neuronal activities: 《Chinese Chemical Letters》2021年第3期1173-1176,共4页Jie Ma Guiyang Xia Yingda Zang Chuangjun Li Jianbo Yang Jiwu Huang Jianjun Zhang Yalun Su Aiguo Wang Dongming Zhang; supported by the Beijing Natural Science Foundation(No.7194299);Fundamental Research Funds for the Central Universities(No.3332018089);the CAMS Innovation Fund for Medical Sciences(No.2016-I2M-1-010);the Drug Innovation Major Project(No.2018ZX09711001-002-010,2018ZX09735006)。; Three novel polycyclic polyprenyled acylphloroglucinols,Hyperscabins A-C,were obtained from the aerial parts of Hypericum scabrum.They featured an unprecedented 5,5-spiro ketal subunit with the loss of C-2’carbonyl i...; 关键词：Hypericum scabrum Prenylphloroglucinols Decarbonyl 5 5-Spiroketal Neuronal effect

Making Spiroketal-based Diphosphine （SKP） Ligands via a Catalytic Asymmetric Approach被引量：1: 《Chinese Journal of Chemistry》2018年第10期899-903,共5页Xiaoming Wang Kuiling Ding; The spiro concept for chiral ligand design represents an important contribution to the area of asymmetric catalysis. Due to the considerable difficulties in the construction of enantiopure all-carbon spiro backbones, ...; 关键词：chiral ligand spiro compounds SPIROKETAL asymmetric catalysis HYDROGENATION

BF3•Et2O Promoted Sulfuration of Steroidal Sapogenins: 《Chinese Journal of Chemistry》2015年第6期632-636,共5页Jun Wang Jingjing Wu Weisheng Tian; support from the Natural Science Foundation of China(Nos.29070070,29372077).; A reaction between steroidal sapogenins and hydrogen sulfide promoted by BF3•Et2O is described.The thio-diosgenin and thiotigogenin comprising a sulfur atom on the F ring can be easily afforded in one step under this ...; 关键词：steroidal sapogenin hydrogen sulfide SULFURATION SPIROKETAL resource chemistry

Cascade N-Alkylation/Hemiacetalization for Facile Construction of the Spiroketal Skeleton of Acortatarin Alkaloids with Therapeutic Potentiality in Diabetic Nephropathy: 《Natural Products and Bioprospecting》2015年第1期37-45,共9页Pei Cao Zhen-Jie Li Wen-Wu Sun Shashwat Malhotra Yuan-Liang Ma Bin Wu Virinder S.Parmar; the“Hundred Talents Project”of Chinese Academy of Science and“High-end Science and Technology Talents Program”’of Yunnan Province(2011HA008)。; The concise building of the spiroketal core of acortatarin-type alkaloids as potential therapeutic agents in diabetic nephropathy was established in four steps,through a tandem N-alkylation/hemiacetalization between p...; 关键词：Acortatarin alkaloids Diabetic nephropathy N-alkylation/hemiacetalization Halomethylation Chiral lactones

NANOPOROUS MATERIALS BASED ON SPIROKETAL AND SPIROTHIOKETAL POLYMERS FOR SEPARATING METHANOL-TOLUENE MIXTURE被引量：1: 《Chinese Journal of Polymer Science》2011年第4期450-455,共6页Hamada Hamada Abdel-Razik Zeinhom Mohamed El-Bahy; Organic microporous materials based on spiroketal and spirothioketal polymers were synthesized through 1,3- dioxol-forming polymerization reaction between pentaerythritol or pentaerythritol tetrathiol and different ty...; 关键词：Spiroketal polymers Nanoporous materials Separation membranes.

Synthesis and Bio-activities of Pyrazolyl or Pyridinyl Substituted Tonghaosu Analogs被引量：2: 《Chinese Journal of Chemistry》2007年第6期808-813,共6页尹标林陈立徐汉虹张健存吴毓林; 11 pyrazolyl or pyridinyl substituted tonghaosu analogs were synthesized. Structures of all the new compounds were confirmed by ^1H NMR, IR, MS, HREIMS or elemental analysis. Their antifeedant activity against larvae ...; 关键词：SPIROKETAL tonghaosu analog ANTIFEEDANT LARVICIDAL growth control Pieris brassicae Culex quinquefasciatus Spodoptera litura

Synthesis and Insecticidal Structure-Activity Relationships of Novel Tonghaosu Analogs被引量：1: 《Chinese Journal of Chemistry》2006年第2期240-246,共7页尹标林陈立徐汉虹胡泰山吴毓林; Project supported by the National Natural Science Foundation of China （Nos. 29672083, 20072043）, the Chinese Academy of Sciences, the Ministry of Science and Technology of China （No. G2000077502）, and the Shanghai Commission of Science and Technology.; Twenty-one tonghaosu analogs were synthesized via hydroamination or selective reduction of the endocyclic double bond of the corresponding dienol spiroketals. Structures of all the new compounds were confirmed by ^1H ...; 关键词：spiroketal hydroamination reduction antifeedant insecticidal Pieris brassicae Culex quinquefasciatus

Synthesis and Biological Activity of Tonghaosu Analogs Containing Phenoxy-phenyl Moiety: 《Chinese Journal of Chemistry》2004年第9期984-989,共6页陈立徐汉虹尹标林肖春胡泰山吴毓林; the National Natural Science Foundation of China (Nos. 29672083, 20072043), the Chinese Academy of Sciences, the State Ministry of Science and Technology (No. 2000077502), the Shanghai Committee of Science and Technology.; A new series of phenoxy-phenyl moieties containing tonghaosu analogs with varied B-ring 9 were synthesized and characterized by spectral studies. Their insect antifeedant activity against Pieris brassicae and insectic...; 关键词：SPIROKETAL ANTIFEEDANT insecticidal activity Pieris brassicae Culex quinquefasciatus

Study on Tonghaosu and Its Analogs:Isolation,Structure Identification and Synthesis of Antifeedant B-ring-homo-tonghaosu: 《Chinese Journal of Chemistry》2004年第1期92-99,共8页陈立尹标林徐汉虹邱明华吴毓林; the National Natural Science Foundation of China (Grant Nos. 29672083, 20072043), Chinese Academy of Sciences, the State Ministry of Science and Technology (No. G2000077502), Shanghai Committee of Science and Technology and the; The methanolic extract from a Chinese endemic Chrysanthemum plant, Dendranthema indicum var. aromaticum, was found to show high antifeeding activity against Pieris brassicae L., and by bioassay-guided separation, the ...; 关键词：SPIROKETAL B-ring-homo-tonghaosu Dendranthema indicum var. aromaticum Pieris brassicae an-tifeedant

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