Search Results - "Si, Yikang"

A Thiopyranchromenone and Other Chromone Derivatives from an Endolichenic Fungus, Preussia africana by Zhang, Fan, Li, Li, Niu, Shubin, Si, Yikang, Guo, Liangdong, Jiang, Xuejun, Che, Yongsheng

“…The first example of a naturally occurring thiopyranchromenone, preussochromone A (1), and five other new chromone derivatives, preussochromones B–F (2–6),…”
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Naphthalenones from a Perenniporia sp. Inhabiting the Larva of a Phytophagous Weevil, Euops chinesis by Feng, Yu, Wang, Lin, Niu, Shubin, Li, Li, Si, Yikang, Liu, Xingzhong, Che, Yongsheng

“…The new naphthalenone derivatives perenniporides A–D (1–4) were isolated from solid cultures of a fungus Perenniporia sp. inhabiting the larva of Euops…”
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Isolation, antimicrobial activity, and absolute configuration of the furylidene tetronic acid core of pestalotic acids A-G by Zhang, Fan, Ding, Gang, Li, Li, Cai, Xiaoyue, Si, Yikang, Guo, Liangdong, Che, Yongsheng

“…Natural products possessing the 3-(furan-2(5H)-ylidene)furan-2,4(3H,5H)-dione (furylidene tetronic acid) skeleton are rare and were encountered only as fungal…”
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A new ursane-type nor-triterpenoid from the leaves of Eucommia ulmoides Oliv by Li, Chuangjun, Li, Li, Wang, Chao, Yang, Jingzhi, Ye, Fei, Tian, Jinying, Si, Yikang, Zhang, Dongming

“…A new ursane-type nortriterpenoid, (11S,12S)-4-methyl-11,12-epoxy-2-hydroxy-3-oxoursa-1,4-dine-28-oic acid γ-lactone (1), named ulmoidol A, together with ten…”
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New vernocuminosides from the stem barks of Vernonia cumingiana Benth by Liu, Jing, Liu, Yunbao, Si, Yikang, Yu, Shishan, Qu, Jing, Xu, Song, Hu, Youcai, Ma, Shuanggang

“…Seven new stigmastane-type steroidal glycosides, vernocuminosides A–G ( 1– 7), have been isolated from the stem barks of Vernonia cumingiana Benth. The…”
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Electronic circular dichroism behavior of chiral Phthiobuzone by Li, Li, Wang, Lin, Si, Yikang

“…Phthiobuzone is a bis(thiosemicarbazone) derivative with a single chiral center which has been used as a racemate in the clinical treatment of herpes and…”
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Yaoshanenolides A and B: New Spirolactones from the Bark of Machilus yaoshansis by Liu, Mingtao, Lin, Sheng, Gan, Maoluo, Chen, Minghua, Li, Li, Wang, Sujuan, Zi, Jiachen, Fan, Xiaona, Liu, Ying, Si, Yikang, Yang, Yongchun, Chen, Xiaoguang, Shi, Jiangong

“…Two novel tricyclic spirolactones bearing long linear alkyl chains, yaoshanenolides A (1) and B (2), formed by Diels–Alder[4 + 2] cycloaddition of a molecule…”
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Anti-HIV-1 activity and cellular pharmacology of various analogs of gossypol by Lin, T S, Schinazi, R F, Zhu, J, Birks, E, Carbone, R, Si, Y, Wu, K, Huang, L, Prusoff, W H

“…We previously reported that the racemic mixture and both enantiomers of gossypol inhibit the replication of human immunodeficiency virus-type 1 (HIV-1) (Lin et…”
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Virgatolides A–C, Benzannulated Spiroketals from the Plant Endophytic Fungus Pestalotiopsis virgatula by Li, Jian, Li, Li, Si, Yikang, Jiang, Xuejun, Guo, Liangdong, Che, Yongsheng

“…Virgatolides A–C (1–3), unique metabolites with a 3′,4′,5′,6′-tetrahydrospiro[chroman-2,2′-pyran] core, were isolated from cultures of the plant endophytic…”
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Interaction studies of an anticancer alkaloid, (+)-(13aS)-deoxytylophorinine, with calf thymus DNA and four repeated double-helical DNAs by Liu, Zhenjia, Lv, Haining, Li, Hongyan, Zhang, Yi, Zhang, Haijing, Su, Fuqin, Xu, Song, Li, Yong, Si, Yikang, Yu, Shishan, Chen, Xiaoguang

“…Phenanthroindolizidine alkaloids are a family of plant-derived compounds with significant antineoplastic activity. The specific biomolecular targets of these…”
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New vemocuminosides from the stem barks of Vernonia cumingiana Benth by JING LIU, YUNBAO LIU, YIKANG SI, SHISHAN YU, JING QU, SONG XU, YOUCAI HU, SHUANGGANG MA

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Solid-phase extraction coupled with high-field proton nuclear magnetic resonance spectroscopy: application to the analysis of brodimoprim metabolites in rat urine by Si, Y, Xu, R, Kong, M, He, W, Zhang, S

“…The use of coupled solid-phase extraction and high-field proton nuclear magnetic resonance spectroscopy (SPE-1HNMR) for the detection and identification of the…”
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