Dendrowardol C(1)-a novel sesquiterpenoid,with an unprecedented 4/5/6/6 tetracyclic carbon backbone,together with two known cyclopacamphane-type sesquiterpenoids;dendronobilin I(2)and dendrobane A(3)were isolated from...Dendrowardol C(1)-a novel sesquiterpenoid,with an unprecedented 4/5/6/6 tetracyclic carbon backbone,together with two known cyclopacamphane-type sesquiterpenoids;dendronobilin I(2)and dendrobane A(3)were isolated from the stems of Dendrobium wardianum Warner.The structure of 1 was established on the basis of spectroscopic data and the absolute configuration was determined by single-crystal X-ray diffraction crystallography.The hypothetical biosynthetic pathway of 1 was postulated.Compound 1 showed no cytotoxic activity against human tumor cell lines HL-60,SMMC-7721,A-549,MCF-7,and SW480.展开更多
Time Warner Cable Inc．（简称TWC）是美国第二大有线电视公司，在有线电视产业中处于领导地位，它的有线电视网络延伸到了美国33个州，覆盖近2600万个家庭，其中有85％的家庭都集中在纽约、加尼福尼亚州、俄亥俄州和德克萨斯州等美国...Time Warner Cable Inc．（简称TWC）是美国第二大有线电视公司，在有线电视产业中处于领导地位，它的有线电视网络延伸到了美国33个州，覆盖近2600万个家庭，其中有85％的家庭都集中在纽约、加尼福尼亚州、俄亥俄州和德克萨斯州等美国主要地区。展开更多
Warner Bros.Studio Tour London Seven books and nine films down the line,the world has lost none of its appetite for all things Harry Potter-related.Which why Warner Bros are keeping the Hogwarts magic alive with their...Warner Bros.Studio Tour London Seven books and nine films down the line,the world has lost none of its appetite for all things Harry Potter-related.Which why Warner Bros are keeping the Hogwarts magic alive with their special exhibition,"The Making of Harry Potter". Just north of Watford you'll find the very warehouses and movie studios that played an integral part in the making of the "Harry Potter"film franchise (特许权).展开更多
基金This work was financially supported by the National Natural and Science Foundations of China(No.30800090)"Xi-Bu-Zhi-Guang"project(No.2009312D11017)from Chinese Academy of Sciencesthe Fund of the State Key Laboratory of Phytochemistry and Plant Resources in West China(P2010-ZZ012).
文摘Dendrowardol C(1)-a novel sesquiterpenoid,with an unprecedented 4/5/6/6 tetracyclic carbon backbone,together with two known cyclopacamphane-type sesquiterpenoids;dendronobilin I(2)and dendrobane A(3)were isolated from the stems of Dendrobium wardianum Warner.The structure of 1 was established on the basis of spectroscopic data and the absolute configuration was determined by single-crystal X-ray diffraction crystallography.The hypothetical biosynthetic pathway of 1 was postulated.Compound 1 showed no cytotoxic activity against human tumor cell lines HL-60,SMMC-7721,A-549,MCF-7,and SW480.
文摘Warner Bros.Studio Tour London Seven books and nine films down the line,the world has lost none of its appetite for all things Harry Potter-related.Which why Warner Bros are keeping the Hogwarts magic alive with their special exhibition,"The Making of Harry Potter". Just north of Watford you'll find the very warehouses and movie studios that played an integral part in the making of the "Harry Potter"film franchise (特许权).
