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1.
<正>Three new sesquiterpene alkaloids,1-desacetylwilforgine(1),1-desacetylwilforine(2),and 9′-hydroxy-2-nicotinoylwilforine (3) were isolated from the roots of Tripterygium wilfordii Hook f.,along with six known alkaloids.Their structures were established on the basis of spectral analysis. 相似文献
2.
Xue Qiang YIN Guang Zhong YANG Yuan Chao LI* Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 《中国化学快报》2001,(7)
The diterpenoid triexpoxides lactone triptolide is a potent antileukemic, antiflammatory, immunosuppressive and antifertile principle of Tripterygium wilfordii Hook f.1,2. Many methods of synthesis of this compound have been reported in which trans-3,3b,4,9b,10, 11-hexahydro-6-methoxy-9b-methyl-7- (1-methylethyl) phenanthro {1,2-c [furan-1,5- dione]} 4 was an important intermediate. In one reported synthesis, compound 4 was obtained by CrO3/AcOH oxidation of triptophenolide methyl ether 1, b… 相似文献
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4.
GuoYingZUO HongPingHE BinGuiWANG XinHONG YiMingHU XiaoJiangHAO 《中国化学快报》2003,14(4):383-384
A new diterpenoid,15-0-accetylspiraminol(1),was isolated from the aerial parts of Spireae japonica L.f.var.ovalifolia.The structure was charaterized mainly based on spectral analysis. 相似文献
5.
<正>A new triterpenoid 3,4,6-trihydroxy-2-oxo-1(10),3,5,7-tetraen-23,24-nor-D:A-friedooleana-29-oic acid,as well as twelve known terpenes were isolated from the roots of Tripterygium wilfordii.Its structure was established on the basis of spectroscopic methods. 相似文献
6.
Zheng Yue Chen Pei Yong Qiu Yong Xue Wang Su Ping Bai Fu Lin Yan Ji Xia Zhang Han Dong Sun 《中国化学快报》2008,19(7):849-851
A new ent-abietane diterpenoid, named dayecrystal C, was isolated from the EtOAc extract of the dried leaves of Isodon macrophyllus. Its structure was determined on the basis of spectroscopic methods. 相似文献
7.
<正>A new macrocyclic diterpenoid,named kansuinine J(1),was isolated from the roots of Euphorbia kansui.Its structure was characterized on the basis of spectroscopic analysis. 相似文献
8.
Xiao Chi Ma Zhan Ping Gou Chang Yuan Wang Ji Hong Yao Xiu Lan Xin Yuan Lin Ke Xin Liu 《中国化学快报》2010,21(5):587-589
<正>A new ent-labdane diterpenoid lactone was isolated from Andrographis paniculata.Its structure was identified on the basis of spectral data including 2D NMR. 相似文献
9.
A new diterpenoid, named populusol A (1), was isolated from the methanolic extraction of the stem bark of Populus davidiana. The structure was elucidated on the basis of extensive 1D and 2D NMR as well as HRFAB-MS spectroscopic analysis. 相似文献
10.
A new octadecanoyl diterpenoid glycoside,(E)-8α,15-dihydroxy-15-(3S-hydroxy-octadecanoyl)-13-labdene-8-O-α-L-arabinopyranoside(1),was isolated from the aerial parts of Conyza blinii,and the structure was identified on the basis of a detailed spectroscopic analysis,including 2D NMR spectrometry and HRESI-MS. 相似文献
11.
SHING T. K. M. 《高等学校化学研究》1993,9(2):152-153
Two styryl-pyrones, (+)-goniotriol (1) and (+)-8-acetylgoniotriol (2), which are cytotoxic to human turnout cells, were isolated from the ethanolic extracts of the stem bark of Goniothalamus giganteus Hook. F., Thomas (Annonaceae), in addition (+)-goniotriol was also isolated from the leaves and twigs of Goniothalamus 相似文献
12.
<正>One new ent-kaurane diterpenoid,named maoyecrystal L was isolated from the EtOAc extract of the dried leaves of lsodon japonica.Its structure was established by various spectroscopic means and confirmed by X-ray crystallographic analysis. 相似文献
13.
A novel hydroperoxide cembrane-type diterpenoid was isolated from the soft coral Sarcophyton crassocaule collected from the Xisha Islands in the South China Sea. The structure of 3 was established by spectroscopy and X-ray diffraction analysis,named as sarcophyocrassolide A. It exhibited strong cytotoxicity against the P-388 cell line with IC50 value of 0.1 μg/mL. 相似文献
14.
A new cassane diterpenoid lactone was isolated from the seed of Caesalpinia minax.On the basis of spectral evidences,its structure was established as 12α-methoxyl,5α,14β-dihydroxy-1α,6α,7β-triacetoxycass-13(15)-en-16,12-olide. 相似文献
15.
A new diterpenoid dimer annonebinide A has been isolated from the stems of Annona glabra.Its structure was determined to be ent-16α-hydroxykauran-17-yl ent-16β-kauran-17-oate on the basis of spectroscopic and chemical evidence. 相似文献
16.
<正>A new ent-labdane diterpenoid,19-O-β-D-glucopyranosyl-ent-labda-8(17),13-dien-15,16,19-triol,together with six known ent-labdane diterpenoids,was isolated from the aerial parts of Andrographis paniculaia.The structure of the new compound was elucidated by extensive spectral analysis. 相似文献
17.
ShouJunGUO XingHuaZHAO DongLiangCHENG 《中国化学快报》2004,15(12):1451-1453
A new diterpenoid trisaccharide, smithoside A, was isolated from Aster smithianus. Its structure was identified as pimar- 15 (16)-β-en-3β, 8β, 11α-triol-3-O-β-D-glucopyranosyl ( 1→3)- [β-glucopyranosyl (1→2)]-β-D-glucopyranoside on the basis of the spectral and chemical methods. 相似文献
18.
A new cassane diterpenoid lactone was isolated from the seed of Caesalpinia minax.On the basis of spectral evidences,its structure was established as 12α-methoxyl,5α,14β-dihydroxy- 1α,6α,7β-triacetoxycass- 13(15)-en- 16,12-olide. 相似文献
19.
《中国化学快报》1992,(2)
Six new diterpene-quinones were isolated from the ethanol extract of the roots of Tripterygium regelii Sprague and their structures were elucidated through interpretation of their spectroscopic data and chemical correlations. The absolute configuration of triptoquinonoic acid A (1) was determined by X-ray crystallography. 相似文献
20.
A new abietane diterpenoid,orthosiphonol (11-methoxy-12,14-dihydroxy-8,11,13-abieta trien-7-one)(1) together with known 11-hydroxysugiol (2) were isolated from Orthosiphon wulfenioides. Their structures were determined on the basis of spectroscopic evidence. 相似文献