【摘 要】
：
Several 14a- and 14b-bromo baccatin III derivatives were synthesized by direct bromination and from silyl enol ether of 13-oxo-7-TES-baccatin III. 14b-Hyroxy b
【机 构】
：
ChineseAcadMedSci,BeijingUnionMedColl
论文部分内容阅读
Several 14a- and 14b-bromo baccatin III derivatives were synthesized by direct bromination and from silyl enol ether of 13-oxo-7-TES-baccatin III. 14b-Hyroxy baccatin III derivative was also obtained from the same silyl enol ether.
其他文献
为了筛选分离得到一株具有油脂降解能力的菌株,同时探究菌株的特性和降解能力。以屠宰场污染土作为菌源,通过梯度驯化法最终筛选分离得到能够将橄榄油作为单一碳源生长的降解
The terpolymer of itaconic acid,acrylamide and 2-acrylamido-2-methyl-1-propane sulfonic acid was synthesized through the free-radical polymerization.The IR spec
The fullerene C60 and phthalocyanine co-grafted poly (epoxy propyl carbazole) (C60-CuPC-PEPC) was synthesized by Friedel-Crafts reaction. It was found that C60
The synthesis and the crystal structure of the title compound (Bu4N)2Hg(S2C=C(CN)2)2 1 is reported herein. The crystal is attributed to triclinic system and sp
“有幸作为代表上台领奖,即激动又自豪。在庄严的人民大会堂现场聆听习近平总书记的重要讲话,是我人生经历中最激动、最难忘、最受教育的一次党课。”12月15日,在国网冀北电
12月22日6点半,天色刚露出微光,国网冀北电科院“风光储并网运行技术国家电网有限公司重点实验室”灯火通明。几十台电脑闪烁着明暗不同的光线,大数据平台上各色曲线变化多端
百业兴旺,电力先行。把供电服务工作做好,是我们供电企业最重要的基本功。只有基本功扎实,其他工作才能得心应手。我们这期“基本功”栏目安排的几篇稿件,分别从几个不同侧面
8月30日,国家林业局召开全国林改专题宣传工作会议,研究如何配合林改百县经验交流会,部署围绕林改典型经验,进一步开展林改宣传,今后的宣传只能加强而不能削弱,在强化领导上
你是否也曾感觉自己身处满是迷雾的丛林,犹豫、迷惘而无助?你是否也曾在选择的路口看着心之所向,却转身走上另一条道路?你是否也在遭遇打击后,拼命挣扎却无可奈何?你是否也曾
A new [60]fullerene dimer 2 in which two C60 units are covalently attached to a squarylium cyanine dye has been synthesized and characterized.