Bis-bibenzyls from the Cameroon Liverwort Marchantia debilis [0.03%]
来源于喀麦隆肝垫Marchantia debilis的茋类化合物
Kenneth Yongabi Anchang,Miroslav Novakovic,Danka Bukvicki et al.
Kenneth Yongabi Anchang et al.
Liverworts are rich sources of terpenoids and aromatic compounds among which bis-bibenzyls are well known for their wide spectrum of biological activities. This is the first report of chemical analysis of the African liverwort Marchantia de...
Phenanthrenes in Chinese Yam Peel Exhibit Antiinflammatory Activity, as Shown by Strong in Vitro Cyclooxygenase Enzyme Inhibition [0.03%]
中国山药皮中的菲喃化合物具有抗炎活性，并通过在体外环氧化酶抑制实验中表现出很强的酶抑制作用得到验证
Qian Li,Chuan-Rui Zhang,Amila A Dissanayake et al.
Qian Li et al.
Chinese yam (Dioscorea opposita), peeled or whole, is a popular food item that is considered to be healthy. Often, the yam is peeled before cooking. However, it is also consumed with peel. Therefore, in this study, the peel of this yam was ...
Structural Elucidation and Free Radical Scavenging Activity of a new o-Orsellinic Acid Derivative Isolated from the Lichen Cladonia rappii [0.03%]
从地钱苔藻中分离的一种新的邻-橙杉酸衍生物的结构阐明及其自由基清除作用研究
Tiago C A Lage,Livia P Horta,Ricardo M Montanari et al.
Tiago C A Lage et al.
Rappiidic acid, a new o-orsellinic acid derivative, was isolated from the lichen Cladonia rappii. Its capability to scavenge reactive oxygen species (ROS) and reactive nitrogen species (RNS) was investigated and compared with resveratrol an...
Preparative Synthesis of Spinochrome D, a Pigment of Different Sea Urchin Species [0.03%]
不同海胆种类的色素spinochromed的制备合成
Olga P Shestak,Nadezhda N Balaneva,Vyacheslav L Novikov
Olga P Shestak
A simple and effective synthesis of spinochrome D (1) (2,3,5,6,8-pentahydroxy-1,4-naphthoquinone), a pigment of different sea urchin species, has been developed starting from 2,3-dichloro-5,8-dihydroxy-1,4-naphthoquinone (13), easily availa...
Inhibitory Effects of Echinochrome A, Isolated from Shell of the Sea Urchin Anthocidaris crassispina, on Antigen-Stimulated Degranulation in Rat Basophilic Leukemia RBL-2H3 Cells through Suppression of Lyn Activation [0.03%]
刺胞动物海胆 Anthocidaris crassispina 中分离得到的 Echinochrome A 对于 Lyn 激活抑制及抑制大鼠类嗜碱性 leukemia rbl-2h3 细胞抗原刺激脱颗粒作用的影响效果研究
Tomohiro Itoh,Azusa Fujiwara,Masayuki Ninomiya et al.
Tomohiro Itoh et al.
Echinochrome A (Echi-A) was isolated from the sea urchin Anthocidaris crassispina and its structure determined using ID and 2D-NMR. In the present study, we examined the inhibitory effect of Echi-A on antigen-stimulated degranulation in rat...
Acetophenones from Acronychia pedunculata and their Cancer Chemopreventive Activity [0.03%]
牻牛儿酮类化合物及其抗肿瘤作用研究
Chihiro Ito,Mari Hosono,Harukuni Tokuda et al.
Chihiro Ito et al.
From the roots of Acronychia pedunculata (L.) Miq. (Rutaceae) collected in Taiwan, six known and three new acetophenones have been isolated. The new compounds were named acrophenones D (1), E (2), and F (3). Of the acetophenones isolated in...
Two Pyrones with Antibacterial Activities from Alpinia malaccensis [0.03%]
姜黄素茋的两个抗菌吡喃酮类化合物 FROM Alpinia malaccensis
Tita Juwitaningsih,Lia D Juliawaty,Yana M Syah
Tita Juwitaningsih
A new pyrone derivative, malakavalactone (2), was isolated from the acetone extract of Alpinia malaccensis fruits, along with a known compound kavalactone (1). The structure of the new compound was determined based on NMR and mass spectral ...
New Chromone, Isocoumarin, and Indole Alkaloid Derivatives from three Sponge-derived Fungal Strains [0.03%]
来源于海绵内生真菌的三种新颖香豆素、异香豆素和吲哚生物碱类茋衍生物
Ling-Hong Meng,Hui-Qin Chen,Imke Form et al.
Ling-Hong Meng et al.
Two new chromone derivatives, 2-hydroxymethyl-3-methyl-7-methoxychromone (1) and 2-hydroxymethyl-3-tert-butyl-7-methoxychromone (2), together with a related known compound, 2,3-dimethyl-7-methoxychromone (3), were isolated from Rhinocladiel...
Hugo A Garro,Guillermo F Reta,Osvaldo J Donadel et al.
Hugo A Garro et al.
Several natural and synthetic coumarins were assayed against different cancer cell lines. Four of them have shown cytotoxicity against a panel of three human solid tumor cell lines (HeLa, T-47D, and WiDr) and a clearly activity/hydrophobici...
Jirapast Sichaem,Suttira Khumkratok,Pattara Sawasdee et al.
Jirapast Sichaem et al.
The chemical investigation of the crude ethyl acetate extract from Pterocarpus indicus stems led to isolation of a new coumarin, indicusane (1), together with eleven known compounds (2-12). To the best of our knowledge, all isolated coumari...