全部文献期刊会议图书|学者科研项目
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作者:Xin-Xiang Lei , Bing Xia ...
来源:[J].Tetrahedron Letters(IF 2.397), 2014, Vol.55 (17), pp.2869-2871
摘要:Abstract(#br)Two novel norlignans, gymnothedelignans A and B were isolated from the whole plants of Gymnotheca chinensis . These norlignans possess a rare 2/5 epoxy benzocycloheptanone skeleton. Their structures were established on the basis of 1D and 2D NMR spectral data analysi...
作者:Xin-Xiang Lei , Bing Xia ...
来源:[J].Tetrahedron Letters(IF 2.397), 2014, Vol.55 (43), pp.5949-5951
摘要:Abstract(#br)Two novel lignans, gymnothespirolignans A ( 1 ) and B ( 2 ), possessing a rare polycyclic spiro skeleton, were isolated from the endemic plant of Gymnotheca involucrata Pei. Their structures were determined by spectroscopic evidences and the absolute configurati...
作者:... Feng Qiu , Xiao-Juan Wang , Xin-Xiang Lei
来源:[J].Natural Products and Bioprospecting, 2018, Vol.8 (4), pp.279-295
摘要:Abstract The determination of natural products stereochemistry remains a formidable task. Residual dipolar couplings (RDCs) induced by anisotropic media are a powerful tool for determination of the stereochemistry of organic molecule in solution. This review will provide a short ...
作者:... Feng Qiu , Xiao-Juan Wang , Xin-Xiang Lei
来源:[J].Natural Products and Bioprospecting, 2018, Vol.8 (4), pp.279-295
摘要:Abstract(#br)The determination of natural products stereochemistry remains a formidable task. Residual dipolar couplings (RDCs) induced by anisotropic media are a powerful tool for determination of the stereochemistry of organic molecule in solution. This review will provide a sh...
作者:... An-jiang Zhang , Xin-Xiang Lei , Jiang-Hai Zhu
来源:[J].Molecules(IF 2.428), 2007, Vol.12 (8), pp.1596
摘要:To discover new 1,2,4-triazole derivatives which may possess significant biological activities, we synthesized a series of novel 6-aryl-3-(D-galactopentitol-1-yl)- 7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazines and 4-(arylmethylidene)amino-5-(D-galactopentitol- 1-yl)-3-mercapto-4H-1...
作者:Xin-Xiang Lei , Xiang-Yun Nan ...
来源:[J].Molecules(IF 2.428), 2002, Vol.7 (8), pp.681
摘要:3-(2-Furanyl)-4-amino-5-mercapto-1,2,4-triazole (1) was prepared from 2-furoic acid through a multi-step reaction sequence. Compound 1 reacted with aromatic acids in the presence of phosphorus oxychloride to give 3-(2-furanyl)-6-aryl-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazoles (2). ...
作者:Xin-Xiang Lei , An-jiang Zhang ...
来源:[J].Molecules(IF 2.428), 2007, Vol.12 (8), pp.1596-1605
摘要:To discover new 1,2,4-triazole derivatives which may possess significant biological activities, we synthesized a series of novel 6-aryl-3-(D-galactopentitol-1-yl)- 7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazines and 4-(arylmethylidene)amino-5-(D-galactopentitol- 1-yl)-3-mercapto-4H-1...
作者:Xin-Xiang Lei , Xian-Xing Chen ...
来源:[J].Molecules(IF 2.428), 2002, Vol.7 (8), pp.681-689
摘要:3-(2-Furanyl)-4-amino-5-mercapto-1,2,4-triazole (1) was prepared from 2-furoic acid through a multi-step reaction sequence. Compound 1 reacted with aromatic acids in the presence of phosphorus oxychloride to give 3-(2-furanyl)-6-aryl-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazoles (2). ...
作者:Yan Zhang , Xin-Xiang Lei
来源:[J].Zeitschrift für Kristallographie - New Crystal Structures(IF 0.103), 2015, Vol.230 (3), pp.199-200
摘要:Abstract C11H18N2O3, orthorhombic, P212121 (no. 19), a = 6.3149(5) Å, b = 9.6242(7) Å, c = 19.671(2) Å, V = 1195.5 Å3, Z = 4, Rgt(F) = 0.0386, wRref(F2) =...

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