The ring-and side-chain-<sup>14</sup>C-labeled probimane, 1,2-bis （4-morpholinomethy1-3,5-dioxopiperazin-1-yl） propane were synthesized from acetic acid-1-<sup>14</sup>C in 4 steps and from &...The ring-and side-chain-<sup>14</sup>C-labeled probimane, 1,2-bis （4-morpholinomethy1-3,5-dioxopiperazin-1-yl） propane were synthesized from acetic acid-1-<sup>14</sup>C in 4 steps and from <sup>14</sup>C-formaldehyde in 1 step respectively. The radiochemical yeild for the ring labeling was 28.1%; for the side-chain labeling was 18.5%.展开更多
A series of Schiff base aluminum(III) complexes bearing morpholinomethyl substituents were synthesized. Comprehensive investigations on their stereoselective and kinetic features in the ring opening polymerization of ...A series of Schiff base aluminum(III) complexes bearing morpholinomethyl substituents were synthesized. Comprehensive investigations on their stereoselective and kinetic features in the ring opening polymerization of lactide were carried out. The ring opening polymerization proved to be first-order in the catalyst and the monomer. Linear relationships between the numberaverage molecular weight of the polylactide and the monomer conversion were consistent with a well-controlled polymerization. The propagation rate was strongly affected by morpholinomethyl substituents on the salicylaldehyde moiety.展开更多
3-氨基-5-吗啉甲基-2-恶唑烷酮(AMOZ)是抗生素呋喃它酮的代谢产物,具有潜在致畸、致癌性。由于分子量太小,其特异性抗体制备尚未突破,无法建立直接检测的免疫分析方法。为了制备针对AMOZ的特异性抗体,本研究首次尝试采用赖氨酸树状分子(...3-氨基-5-吗啉甲基-2-恶唑烷酮(AMOZ)是抗生素呋喃它酮的代谢产物,具有潜在致畸、致癌性。由于分子量太小,其特异性抗体制备尚未突破,无法建立直接检测的免疫分析方法。为了制备针对AMOZ的特异性抗体,本研究首次尝试采用赖氨酸树状分子(G5)替代传统载体蛋白,将AMOZ的乙醛酸衍生半抗原AMOZA直接偶联到G5分子上制备免疫原(AMOZA-G5),免疫Balb/c小鼠,收集抗血清并进行间接竞争酶联免疫分析(ci ELISA)测定。结果发现:传统免疫原AMOZA-BSA对应的抗血清无法特异性识别游离AMOZ,而AMOZA-G5对应的抗血清则可以特异性识别游离AMOZ,在ci ELISA实验中,1μg/m L AMOZ对抗体活性的抑制率为35%,说明以赖氨酸树状分子为载体可以有效提高小分子半抗原的免疫原性。本研究对于制备其他小分子半抗原的特异性抗体提供了方法借鉴。展开更多
文摘The ring-and side-chain-<sup>14</sup>C-labeled probimane, 1,2-bis （4-morpholinomethy1-3,5-dioxopiperazin-1-yl） propane were synthesized from acetic acid-1-<sup>14</sup>C in 4 steps and from <sup>14</sup>C-formaldehyde in 1 step respectively. The radiochemical yeild for the ring labeling was 28.1%; for the side-chain labeling was 18.5%.
基金supported by the National Natural Science Foundation of China(51173183,51233004,51390484,51321062,51473029)
文摘A series of Schiff base aluminum(III) complexes bearing morpholinomethyl substituents were synthesized. Comprehensive investigations on their stereoselective and kinetic features in the ring opening polymerization of lactide were carried out. The ring opening polymerization proved to be first-order in the catalyst and the monomer. Linear relationships between the numberaverage molecular weight of the polylactide and the monomer conversion were consistent with a well-controlled polymerization. The propagation rate was strongly affected by morpholinomethyl substituents on the salicylaldehyde moiety.
文摘3-氨基-5-吗啉甲基-2-恶唑烷酮(AMOZ)是抗生素呋喃它酮的代谢产物,具有潜在致畸、致癌性。由于分子量太小,其特异性抗体制备尚未突破,无法建立直接检测的免疫分析方法。为了制备针对AMOZ的特异性抗体,本研究首次尝试采用赖氨酸树状分子(G5)替代传统载体蛋白,将AMOZ的乙醛酸衍生半抗原AMOZA直接偶联到G5分子上制备免疫原(AMOZA-G5),免疫Balb/c小鼠,收集抗血清并进行间接竞争酶联免疫分析(ci ELISA)测定。结果发现:传统免疫原AMOZA-BSA对应的抗血清无法特异性识别游离AMOZ,而AMOZA-G5对应的抗血清则可以特异性识别游离AMOZ,在ci ELISA实验中,1μg/m L AMOZ对抗体活性的抑制率为35%,说明以赖氨酸树状分子为载体可以有效提高小分子半抗原的免疫原性。本研究对于制备其他小分子半抗原的特异性抗体提供了方法借鉴。
