Page 183 - 《精细化工》2020年第6期
P. 183
第 37 卷第 6 期 精 细 化 工 Vol.37, No.6
202 0 年 6 月 FINE CHEMICALS June 2020
医药与日化原料
含膦酸酯的 L-苯丙氨酸二肽衍生物的
合成及其抗肿瘤作用
杨家强,杨小兰,苟光淋,安家丽
(遵义医科大学 药学院,贵州 遵义 563000)
摘要:为了寻找抗肿瘤活性化合物,以芳香醛和亚磷酸二乙酯为原料,在三乙胺作用下,制备中间体Ⅰ;以 L-苯
丙氨酸甲酯盐酸盐和 Boc-氨基酸为原料,经缩合、酯水解制备中间体Ⅱ;然后,中间体Ⅰ与中间体Ⅱ经 1-乙基-
(3-二甲基氨基丙基)碳酰二亚胺盐酸盐/1-羟基苯并三唑缩合,脱保护,制备了 9 个含膦酸酯结构的 L-苯丙氨酸
1
13
二肽衍生物,经 HNMR、 CNMR 和 MS 对合成产物结构进行了确证。采用溴化噻唑蓝四氮唑(MTT)法对目
标化合物进行了体外抗肿瘤活性测试。结果表明,部分目标物对所测肿瘤细胞有增殖抑制作用,呈现潜在的抗肿瘤
活性。尤以 O,O'-二乙基[α-(4-氟苯基)-α-(L-脯氨酰-L-苯丙氨酰氧基)]甲基膦酸酯(Ⅲi)最为突出,对人肺癌细胞(A-549)
和人食管癌细胞(EC-109)均有显著抑制作用,对应的半抑制浓度(IC 50 )分别为(6.8±0.9)、(7.0±1.2) μmol/L,
与对照药顺铂接近。
关键词:膦酸酯;L-苯丙氨酸;二肽衍生物;抗肿瘤活性;医药原料
中图分类号:R914.4; O627.51 文献标识码:A 文章编号:1003-5214 (2020) 06-1249-05
Synthesis and antitumor activity of L-phenylalanine dipeptide
derivatives containing phosphonate backbones
YANG Jiaqiang, YANG Xiaolan, GOU Guanglin, AN Jiali
(School of Pharmacy, Zunyi Medical University, Zunyi 563000, Guizhou, China)
Abstract: To search for antitumor compounds, intermediate Ⅰ was prepared from aromatic aldehydes and
diethyl phosphite in the presence of triethylamine. Intermediate Ⅱ was obtained from L-phenylalanine
methyl ester hydrochloride and Boc-amino acid by condensation and hydrolysis of ester. Then, nine
L-phenylalanine dipeptide derivatives containing phosphonate backbones were synthesized from
intermediate Ⅰ and intermediate Ⅱ by 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride
/1-hydroxybenzotriazole condensation and deprotection. The structures of compounds were confirmed by
1 HNMR, CNMR and MS. These compounds were tested for their antitumor activities in vitro by
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3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. The results showed that some
of target compounds had inhibitory effect on the proliferation of the tumor cells and showed potential
antitumor activity. Especially, O,O'-diethyl[α-(4-fluorphenyl)-α-(L-prolyl-L-phenylpropionyloxy)]methyl
phosphonate (Ⅲi) showed remarkable activities against human lung cancer cell (A-549) and human
esophageal cancer cells (EC-109). The corresponding half inhibition concentration (IC 50) values were
(6.8±0.9) and (7.0±1.2) μmol/L, respectively, which were close to those of cisplatin.
Key words: phosphonate; L-phenylalanine; dipeptide derivative; antitumor activity; drug materials
目前,全球肿瘤发病率和死亡率仍然居高不下, 高活性抗肿瘤化合物具有重要意义。
在发展中国家尤为突出,长期以来,肿瘤一直是威 膦酸酯类衍生物作为重要的有机磷化合物具有
[4]
[1]
[5]
胁人类健康的头号杀手 。因此,寻找结构新颖的 抗肿瘤 [2-3] 、抗菌 、抗病毒 等多种生理活性。前期,
收稿日期:2019-12-10; 定用日期:2020-03-20; DOI: 10.13550/j.jxhg.20191158
基金项目:贵州省科技厅国际合作项目(黔科合外 G 字[2014]7013);贵州省中医药管理局项目(QZYY[2018]085)
作者简介:杨家强(1979—),男,硕士,教授,E-mail:yjqcn@126.com。