Page 168 - 《精细化工》2022年第12期
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第 39 卷第 12 期                            精   细   化   工                                 Vol.39, No.12
             2 022 年 12 月                            FINE CHEMICALS                                 Dec.  2022


              医药与日化原料
                  噻吩并[2,3-d]嘧啶类衍生物的合成及抗肿瘤活性



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                                                   2
                            刘   波    1,2 ,高   慧 ,张梦丹           1,2 ,杨   平 ,宋新建            1,2*
                 (1.  湖北民族大学  生物资源保护与利用湖北省重点实验室,湖北  恩施  445000;2.  湖北民族大学  化学
                 与环境工程学院,湖北  恩施  445000)


                 摘要:以 2-丁酮、丙二腈和单质硫为原料,通过改良的 Gewald 反应制备了 2-氨基-3-氰基-4,5-二甲基噻吩(Ⅰ),
                 Ⅰ再与三氯氧磷和三氟乙酸反应“一锅法”合成了 5,6-二甲基-2-三氟甲基-4-氯噻吩并[2,3-d]嘧啶(Ⅱ),中间体
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                 Ⅱ分别与不同取代苄胺反应制得了 16 种噻吩并[2,3-d]嘧啶类含氟衍生物(Ⅲa~Ⅲp)。通过 HNMR、 CNMR、
                 FTIR、MS 和元素分析对目标化合物进行了表征,并采用 X 射线单晶衍射测定了 5,6-二甲基-2-三氟甲基-4-苄氨
                 基噻吩并[2,3-d]嘧啶(Ⅲa)的晶体结构。对目标化合物的体外抗肿瘤活性进行了评价。结果表明,Ⅲa、5,6-二
                 甲基-2-三氟甲基-4-(3-氟苄氨基)噻吩并[2,3-d]嘧啶(Ⅲc)和 5,6-二甲基-2-三氟甲基-4-(3-氯苄氨基)噻吩并[2,3-d]
                 嘧啶(Ⅲf)表现出良好的抗肿瘤活性,化合物Ⅲa 对 MCF-7 和 HepG2 细胞的半数抑制浓度(IC 50 )分别为 2.01
                 和 2.44 μmol/L,Ⅲc 对 MCF-7 和 HepG2 细胞的 IC 50 分别为 1.44 和 1.47 μmol/L,二者的活性均远优于对照组吉
                 非替尼(Gefitinib)。
                 关键词:噻吩并[2,3-d]嘧啶;含氟衍生物;晶体结构;抗肿瘤活性;合成;医药原料
                 中图分类号:R914.5      文献标识码:A      文章编号:1003-5214 (2022) 12-2534-07



                  Synthesis and antitumor activity of thieno[2,3-d]pyrimidine derivatives

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                                  1,2
                                                               1,2
                           LIU Bo , GAO Hui , ZHANG Mengdan , YANG Ping , SONG Xinjian      1,2*
                 (1. Hubei Key Laboratory of Biological Resources Protection and Utilization, Hubei Minzu University, Enshi 445000,
                 Hubei, China; 2. School of Chemistry and Environmental Engineering, Hubei Minzu Univrsity, Enshi 445000, Hubei,
                 China)
                 Abstract: 2-Amino-3-carbonitrile-4,5-dimethylthiophene(Ⅰ) was firstly prepared from  modified Gewald
                 reaction of  butan-2-one, malononitrile and elemental sulfur. Sixteen  fluorinated thieno[2,3-d]pyrimidine
                 derivatives (Ⅲa~Ⅲp) were then synthesized via substitution reaction of substituted benzylamines with key
                 intermediate 4-chloro-5,6-dimethyl-2-(trifluoromethyl)thieno[2,3-d]pyrimidine (Ⅱ), which was obtained
                 directly from one-pot reaction of compound  Ⅰ  and trifluoroacetic acid in presence of phosphorous oxychloride.
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                 These  sixteen derivatives obtained were characterized by  HNMR,  CNMR, FTIR,  MS and elemental
                 analysis with the crystal structure of compound 5,6-dimethyl-2-trifluoromethyl-4-benzylaminothieno[2,3-d]
                 pyrimidine (Ⅲa)  determined  by  X-ray single-crystal diffraction, and further evaluated for their  in vitro
                 antitumor performance.  The results indicated that compounds  Ⅲa, 5,6-dimethyl-2-trifluoromethyl-4-
                 (3-fluorobenzyl)aminothieno[2,3-d]pyrimidine ( Ⅲ c) and  5,6-dimethyl-2-trifluoromethyl-4-(3-chloro-
                 benzyl)aminothieno[2,3-d] pyrimidine (Ⅲf) exhibited good in vitro antitumor activity. The half inhibitory
                 concentration (IC 50) of  compound  Ⅲa against MCF-7  and  HepG2 cells were  2.01 and  2.44  μmol/L,
                 respectively, while those of  Ⅲc against MCF-7 and HepG2 cells were 1.44 and 1.47 μmol/L, respectively.
                 Both of  Ⅲa and  Ⅲc displayed much better antitumor activity than the control group Gefitinib.
                 Key words: thieno[2,3-d]pyrimidine; fluorinated derivatives; crystal structure; antitumor activity; synthesis;
                 drug materials


                 收稿日期:2022-07-08;  定用日期:2022-10-28; DOI: 10.13550/j.jxhg.20220631
                 基金项目:国家自然科学基金项目(21262012);湖北民族大学高水平科研成果校内培育项目(PY22002)
                 作者简介:刘   波(1990—),男,助理实验师,E-mail:liuboyaolong@163.com。联系人:宋新建(1975—),男,教授,E-mail:
                 whxjsong@163.com。
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