lactone相关论文
The present study was designed to synthesize 2-Cyano-3,12-dioxooleana-1,9(11)-en-28-oate-13β,28-olide (1),a lactone der......
<正> Arteannuin 1 which was shown to be a new sesquiterpenoid containing a peroxide group is an antimalaria active princ......
A new sesquiterpene lactone, strychnilactone (1), together with five known sesquite- rpenoids, linderane (2), lindenenol......
由野菊花(Chrysanthemum indicum L.)分离得一新内酯化合物C_(15)H_(18)O_4暂名为野菊花内酯(yejuhua lactone),本文证明系属洋甘......
A new abietane diterpene 12-hydroxy-7-oxo-5, 8, 11, 13-tetraene-18, 6-abietanolide, together with a new natural sterol s......
In March of 1977,a team of pharmacologists and chemists published a one-page article in Chinese Science Bulletin[1],whic......
Two new pyrone derivatives phelligridins A 1 and B 2 were isolated from the fruit body of Phellinus igniarius. Their st......
A new ent-labdane diterpenoid lactone was isolated from. Andrographis paniculata. Its structure was identified on the ba......
An improved and high-yielding synthesis of cis-5, 8-dihydroxy-1, 4, 5, 8, 9, 10- hexa-hydronaphthalene-1,8-lactone 7, an......
[目的]研究酯和内酯的分光光度检测方法。[方法]首先,酯和内酯在碱性条件下与羟胺反应生成异羟肟酸;然后,在酸性条件下异羟肟酸又......
考察9-硝基喜树碱（9-NC）静脉注射后在大鼠组织中的分布及内酯稳定性。建立了HPLC法同时测定组织和血浆中9-NC内酯浓度和总浓度。大鼠......
就固体酸催化剂对羧酸和酯类化合物的活化作用、相关的Friedel-Crafts反应催化体系和反应机理方面的研究进展进行了综述。其中,羧......
A new diterpene lactone with an ent--kaurane skeleton, named antriptolactone(1)was isolated from the roots of Tripterygi......
脂肪族聚酯作为一种高性能、多用途的生物可降解材料,被认为是具有吸引力的石油基聚合物替代品之一。现有的脂肪族聚酯存在的结构......
以β（δ）-内酯为原料，N-溴代丁二酰亚胺（NBS）为氧化剂，合成了具有不同碳链长度的4（5）-氧代羧酸，其结构经NMR和MS表征。考察了NBS用量对产率......
目的:优化供注射用银杏叶提取物的生产工艺.方法:采用直接比较法,以HPLC法测定个样品中银杏总黄酮和总内酯的含量为考察指标,对银......
目的观察白术内酯Ⅰ对64例经组织学确诊的晚期恶性肿瘤恶病质患者血清细胞因子IL-1、IL-6及TNF-α和肿瘤代谢因子蛋白水解诱导因子......
(-)-cis-1, 3-Dibenzyl-hexahydrofuro[3, 4-d]imidazole-2, 4-dione was prepared by a new synthesis method from meso dicarbo......
