Unusual Steroid Constituents from the Tropical Starfish Leiaster sp [0.03%]
一种热带海星Leiaster sp中的 unusual steroid 类成分研究
Timofey V Malyarenko,Alla A Kicha,Natalia V Ivanchinia et al.
Timofey V Malyarenko et al.
Two polar steroid compounds, taurochenodeoxycholic acid sodium salt (1) and a rare cyclic steroid glycoside luzonicoside A (2), were isolated from the tropical starfish Leiaster sp. and identified by extensive NMR and ESIMS techniques. The ...
Aphelasteroside F, a new Asterosaponin from the Far Eastern Starfish Aphelasterias japonica [0.03%]
日本四星海星中的新海星皂苷Aphelasteroside F
Roman S Popov,Natalia Ivanchina,Anatoly I Kalinovsky et al.
Roman S Popov et al.
A new asterosaponin aphelasteroside F (1) was isolated from the ethanolic extract of the Far Eastern starfish Aphelasterias japonica along with the previously known ophidianoside F (2). The structure of 1 was elucidated by extensive use of ...
Regulusosides A, B, and C, Three New Polyhydroxysteroid Glycosides from the Starfish Pentaceraster regulus [0.03%]
五角海星聚羟基甾体糖苷.regulosides A、B、C
Alla A Kicha,Natalia V Ivanchina,Timofey V Malyarenko et al.
Alla A Kicha et al.
Three new polyhydroxysteroid glycosides, regulusosides A-C (1-3) along with the previously known five steroid compounds (4-8) were isolated from the tropical starfish Pentaceraster regulus. The structures of compounds 1-3 were established b...
In vitro Anticancer Activities of Some Triterpene Glycosides from Holothurians of Cucumariidae, Stichopodidae, Psolidae, Holothuriidae and Synaptidae families [0.03%]
从几种海参科、刺海参科、海盘车科、hog 海参科和 synaptid 海参中某些三萜皂苷的体外抗癌活性研究
Sergey N Fedorov,Sergey A Dyshlovoy,Alexandra S Kuzmich et al.
Sergey N Fedorov et al.
Triterpene glycosides isolated from holothurians are natural products known to possess cytotoxic properties against cancer cells. However, their anticancer prophylactic activity has not been studied sufficiently. The anticancer prophylactic...
Barbara Bednarczyk-Cwynar,Tomasz Wiecaszek,Piotr Ruszkowski
Barbara Bednarczyk-Cwynar
The synthesis of 3-0-acyl derivatives of lupeol is presented, as well as lupenone and the oxime of lupenone. The obtained derivatives were subjected to the MTT test in order to evaluate their cytotoxic activity toward HeLa, KB, MCF-7 and A-...
Antioxidants from Annatto Seeds as Possible Inhibitory Agents of the Hepatotoxicity Induced by the Antitumor Agent Cisplatin [0.03%]
取自动物模型的抗氧化剂_annato种子作为可能抑制抗肿瘤药物顺铂引起的肝毒性抑制剂
Luceia Fatima Souza,Niara da Silva Medeiros,Paula Cilene Pereira Dos Santos et al.
Luceia Fatima Souza et al.
The effects of annatto seeds and of bixin on the oxidative damage induced by cisplatin in male Wistar rats was evaluated in the present study by way of lipid peroxidation, weight gain, the food efficiency coefficient, fat deposits in the he...
On the Allylic Oxidation of Ent-kaurenic Acid Methyl Ester with Lead Tetra-acetate [0.03%]
用四乙酸铅使Ent-卡reu酸甲酯进行烯丙基氧化
Julio Rojas,Rosa Aparicio,Alfredo Usubillaga
Julio Rojas
In this paper, results obtained upon treatment of the methyl ester of ent-kaur-16-en-19-oic acid (1b) with lead tetra-acetate under reflux in glacial acetic acid solution and an argon atmosphere are described. After 30 minutes reflux, GC-MS...
Terpenoids from the Fermented Broths of Coprinellus radians [0.03%]
Coprinellus radians菌发酵液中的倍半萜类化合物研究
Ming-Shian Lee,Che-Jen Hsiao,Yu-Ming Ju et al.
Ming-Shian Lee et al.
One new sesquiterpenoid, namely coprinol (1), along with guanacastanes J (2), E (3) and N (4), were isolated from the ethyl acetate extracts of the fermented broths of the fungal strain Coprinellus radians ≠1168. Their structures were eluc...
Jukkarin Srivflai,Nantaka Khorana,Neti Waranuch et al.
Jukkarin Srivflai et al.
Anti-androgenic drugs are treatments for androgen-related disorders such as benign prostatic hyperplasia, acne, hirsutism, and androgenic alopecia. Germacrone (1), a sesquiterpene isolated from hexane extracts of Curcuma aeruginosa Roxb. rh...
Enhanced Production of δ-Guaiene, a Bicyclic Sesquiterpene Accumulated in Agarwood, by Coexpression of δ-Guaiene Synthase and Farnesyl Diphosphate Synthase Genes in Escherichia coli [0.03%]
通过共表达δ-脑倍半萜合成酶和法尼基二磷酸合成酶基因提高四氢木香内酯在大肠杆菌中的产量
Takahiro Kato,Jung-Bum Lee,Futoshi Taura et al.
Takahiro Kato et al.
Two genes involved in δ-guaiene biosynthesis in Aquilaria microcarpa, δ-guaiene synthase (GS) and famesyl diphosphate synthase (FPS), were overexpressed in Escherichia coli cells. Immunoblot analysis revealed that the concentration of GS-...