共查询到20条相似文献,搜索用时 15 毫秒
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J. Krüger 《Human genetics》1987,75(3):297-297
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Zhang Wei; Yamane Hisakazu; Spray Clive R.; Chapman David J.; Phinney Bernard O. 《Plant & cell physiology》1992,33(2):197-199
Isopentenyladenosine and cis-zeatin riboside have been identifiedby GC-MS from the tRNA of a red alga Porphyra perforata. (Received March 12, 1991; Accepted December 7, 1991) 相似文献
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Critical response from Professor Michael J. Samways 总被引:2,自引:0,他引:2
Michael J. Samways 《Journal of Biogeography》2003,30(6):817-817
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Seven compounds, including three labdane diterpenes (1, 4, 6), one bisnorlabdane diterpene (2), one steroid (3), one sesquiterpene (5) and one kawalactone (7) were isolated from the rhizomes of Amomum uliginosum J.Koenig. Compounds 1–4, 6 and 7 were firstly isolated from the genus Amomum. This work represented the first phytochemical study on this plant. The chemotaxonomic significance of these compounds was summarized. 相似文献
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Yan‐Tong Xu Tian‐Xiang Li Xiu‐Mei Gao Yan Zhu Yun Seon Song Ya‐Nan Wang Hong‐Hua Wu 《化学与生物多样性》2017,14(5)
Four new iridoids, 2′‐O‐(E)‐coumaroylshanzhiside ( 1 ), 6′‐O‐(E)‐coumaroylshanzhiside ( 2 ), 8α‐butylgardenoside B ( 3 ), 6α‐methoxygenipin ( 4 ), and one new phenylpropanoid glucoside, 5‐(3‐hydroxypropyl)‐2‐methoxyphenyl β‐d ‐glucopyranoside ( 5 ), together with sixteen known compounds, were isolated from the edible flowers of wild Gardenia jasminoides J.Ellis . Their chemical structures were characterized by extensive spectroscopic techniques, including 1D‐ and 2D‐NMR, HR‐ESI‐MS, and CD experiments. The absolute configurations of the new isolates’ sugar moiety were assigned by HPLC analysis of the acid hydrolysates. Furthermore, the antioxidant activities of those isolates were preliminarily evaluated by DPPH scavenging experiment. And comparison of 1H‐NMR spectra for the EtOH extract of G. jasminoides J.Ellis , gardenoside B and geniposide revealed that the flowers of this plant have a considerable content of gardenoside B instead of geniposide in the fruits, indicating different activities and applications in people's daily life. 相似文献