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两种果糖衍生物的合成、卷烟保润性能及毒理学试验
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摘要
以D-果糖(Ⅰ)为起始原料,经羟基保护、亲核取代、皂化或还原反应、脱保护反应分别得到化合物Ⅴ和Ⅶ,用IR、~1H NMR和~(13)C NMR谱表征了合成产物的结构,以HR-MS对Ⅴ和Ⅶ作进一步结构表征。以D-果糖、丙二醇和甘油为对照,以烟丝含水率为指标对Ⅴ和Ⅶ的物理保润性能进行评价;对Ⅴ和Ⅶ进行了卷烟烟气危害性指数评价和毒理学测试分析。结果表明:①化合物Ⅴ和Ⅶ为目标产物1-O-羧甲基-D-果糖和1-O-羟乙基-D-果糖,其反应总收率分别为55.0%和47.1%;②Ⅴ和Ⅶ的保湿性能均优于D-果糖、丙二醇和甘油,其中Ⅴ优势明显;③添加Ⅴ和Ⅶ对卷烟烟气危害性指数无负面影响;与空白卷烟相比,添加Ⅴ和Ⅶ的卷烟均未引起MTT细胞毒性试验、体外微核试验和细菌回复突变试验的测试结果有显著性增加。
1-O-Carboxymethyl-D-Fructose(Ⅴ) and 1-O-Hydroxyethyl-D- Fructose(Ⅶ) were synthesized from D-fructose( Ⅰ) with hydroxyl protection, nucleophilic substitution, saponification or reduction and deprotection reactions. The structures of the products in each synthesized step were characterized via IR, 1H NMR and 13 C NMR. Both of Ⅴ and Ⅶ are further characterized by HR-MS. Their moisture retentivity was tested by tobacco and compared with that of D-fructose, propylene glycol and glycerin. To evaluate cigarette smoke hazard of Ⅴ and Ⅶ, the toxicology test was carried out. After the data were analysed, the result showed that: 1) The synthesized compounds Ⅴ and Ⅶ were the target products, and the final total yields were 55.0% and 47.1% respectively; 2) They were better than D-fructose, propylene glycol and glycerin in the moisture retentivity, and the former had more obvious advantage. 3) It had no negative effect on the risk of cigarette mainstream smoke hazard index with adding Ⅴ and Ⅶ into cigarettes; compared with the blank cigarette, add Ⅴ and Ⅶ cigarette could not induce MTT cell toxicity test, micronucleus test and bacterial reverse mutation test results have significant increase.
引文
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