在天然存在的非丙酮生乙酸原素bulatacin的基础上,设计并合成了结构相似的非乙酸产乙酸原素的(4R)-羟基化类似物,该化合物被发现为具有强大细胞毒性,抗肿瘤和其他作用的新型聚酮化合物家族的典型成员。生物活动。初步筛选显示,针对HT-29和HCT-8的IC(50)值为2,分别为1.6 x 10(-3)和8 x 10(-2)microg / mL。通过1c及其(4R)-羟基化类似物2的活性比较,观察到了显着的增强作用。
the deacylation was studied. In addition, the rate of the spontaneous intramolecularmigration of different acyl groups was determined for the intermediate 2-monoesters. The acyl group migration may diminish the apparent stereoselectivity of the two-step process if fast migrating acyl groups are used. It was found that the migration rate of different acyl groups differs by up to two orders of magnitude
Studies on Mimicry of Naturally Occurring Annonaceous Acetogenins: Non-THF Analogues Leading to Remarkable Selective Cytotoxicity against Human Tumor Cells
A class of structurally simplified analogues of the naturally occurring annonaceousacetogenins were developed, amongst which some non-THF analogues showed remarkable cytotoxicities against tumor cell lines, as well as good selectivity between human tumor cells and normal cells. The synthetic routes were significantly shortened because of the removal of the chiral centers bearing the THF rings on the
Annonaceous acetogenin mimics bearing a terminal lactam and their cytotoxicity against cancer cells
作者:Hai-Xia Liu、Guo-Rui Huang、Huan-Ming Zhang、Jia-Rui Wu、Zhu-Jun Yao
DOI:10.1016/j.bmcl.2007.03.084
日期:2007.6
Annonaceous acetogenins are a large class of naturally occurring polyketides exhibiting potent anticancer activities. Based on our previous discovery of AA005, a multi-ether mimic of natural acetogenins having potent antitumor activities and significant selectivity between normal cells and cancer cells, a new series of mimics containing a terminal lactam were designed, synthesized and evaluated. Bioactivity
Tuning the Acyclic Ether Moiety of Anticancer Agent AA005 with Conformationally Constrained Fragments
作者:Hai-Xia Liu、Fei Shao、Gang-Qin Li、Guo-Liang Xun、Zhu-Jun Yao
DOI:10.1002/chem.200801298
日期:2008.9.26
series of anticancer annonaceous acetogenin mimetics were designed, synthesized, and evaluated based on our previously developed compound AA005, in which a variety of conformationallyconstrainedfragments were introduced. Parallel syntheses of all new compounds were accomplished by replacement of the acyclic bis-ether functionality of AA005 with certain conformationallyconstrainedfragments. Slight
Synthesis of the two enantiomeric forms of erythro-6-acetoxy-5-hexadecanolide, the major component of a mosquito oviposition attractant pheramone
作者:Claudio Fuganti、Piero Grasselli、Stefano Servi
DOI:10.1039/c39820001285
日期:——
The synthesis of the majorcomponents of a mosquitoovipositionattractantpheromone, (5S,6R)-6-acetoxy-5-hexadecanolide(24) and the (5R,6S)enantiomer (21) from the (2S,3S) C4 aldehyde (1), is reported.