Page 183 - 《精细化工》2020年第6期
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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
                         13
                 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。
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