A New Asterosaponin from the Starfish Culcita novaeguineae

来源 :中国化学快报:英文版 | 被引量 : 0次 | 上传用户:chica2222
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A new asterosaponin named novaeguinoside A, along with a known saponin, asteronyl pentaglycoside sulfate, was isolated from the starfish Culcita novaeguineae. The new compound was identified to be sodium 6α-O- { β-D-fucopyranosyl-(1→2)-β-D-fucopyranosyl-(
其他文献
Sulfamic acid has been used as an efficient catalyst and green alternative for conventional acidic materials to promote the acetolysis reaction of THF to produc
A new hetero-six-nuclear cluster was synthesized and determined by X-ray diffraction technique. The four-carboxylate groups are bound to the Cu(Ⅱ) atoms to for
A novel series of pyrido[1,2-e]purin-4(3H)-one derivatives containing polar substituents on 5'-position were designed and prepared as potential PDE5 inhibit
The structure of tubeimoside V (1), a new cyclic bisdesmoside, isolated from tubers of Bolbostemma paniculatum (Tu Bei Mu), was established by means of 2D NMR s
Ultralong beltlike nanostructures was successfully synthesized for V6O13 crystal by a hydrothermal route. The products are characterized by means of X-ray powde
详述了在数字化制造过程中建立网络化DNC系统的必要性和可行性.通过对DNC-NET系统的构成原理和应用方法的解析,阐明它在制造现场信息化系统构建中的重要作用。
Catalytic properties of ZSM-5 zeolite samples pretreated with NaOH solution have been investigated. The samples are characterized by XRD, SEM, chemical analysis
A new andrographolide metabolite 1 was isolated from human urine samples after oral administration. The structure was determined to be 3-carbonylandrographolide
Four new oxypregnane-oligoglycosides, mucronatosides A (1), B (2), C (3), and D (4),together with one known stephanoside E (5) were isolated from the stems of S
ZSM-5 zeolitic coatings on aluminum have been prepared successfully by in-situ hydrothermal synthesis method and ZSM-5/A1 monolith was formed. The effects of pH