有机化学 ›› 2004, Vol. 24 ›› Issue (8): 906-911. 上一篇    下一篇

研究论文

3-位苯并含氮杂环取代的焦脱镁叶绿酸-a甲酯的合成

王进军*,a, 邬旭然a, 王鲁敏a, 韩光范b, 沈荣基c   

  1. a烟台大学应用化学系 烟台 264005
    b华中船舶工业学院材料与工程学院 镇江 212003
    c仁济大学微工程学院 釜山 韩国
  • 收稿日期:2003-10-08 修回日期:2004-02-20 接受日期:2004-02-20 发布日期:2022-09-20
  • 通讯作者: * E-mail: wjj1955@163.com
  • 基金资助:
    科技部中韩政府间合作项目(No. 2002)资助项目.

Synthesis of Methyl Pyripheophorbide-a Substituted at 3-Position by Benzo-heterocycle with Nitrogen Atom

WANG Jin-Jun*,a, WU Xu-Rana, WANG Lu-Mina, HAN Guang-Fanb, SHIM Yong Keyc   

  1. aDepartment of Applied Chemistry, Yantai University, Yantai 264005
    bSchool of Materials Science and Engineering, East China Shipbulding Institute, Zhenjiang 212003
    cSchool of Nano Engineering, Inji University, Pusan, Korea
  • Received:2003-10-08 Revised:2004-02-20 Accepted:2004-02-20 Published:2022-09-20

以焦脱镁叶绿酸-a甲酯(MPP-a) (1)为起始原料,在二氯甲烷中与醋酸锌共回流得锌配合物2,在四氯钯锂催化下,通过与苯基氯化汞的偶联反应生成3b-苯基焦脱镁叶绿酸-a甲酯(3).分别选用四氧化锇、高钌酸四丙基铵(TPAP)和N-甲基吗啉N-氧化物将环外烯键氧化成邻二酮(4).在酸性条件下,4与邻苯二胺的缩合形成了3-位喹喔啉取代的焦脱镁叶绿酸-a甲酯(5).用四氧化锇和高碘酸钠将1的3-位碳碳双键氧化,则生成焦脱镁叶绿酸-d甲酯(6).所得卟吩醛与环己二酮和萘胺进行一锅法反应,得到3-位苯并吖啶取代的焦脱镁叶绿酸-a甲酯(7).所合成的新卟吩化合物均经UV, IR, 1H NMR及元素分析证明其结构.

关键词: 叶绿素-a衍生物, 焦脱镁叶绿酸-a甲酯, 杂环取代卟吩衍生物, 光动力疗法(PDT)

Methyl pyropheophorbide-a (MPP-a) (1) was usedas starting material for the synthesis of chlorin compounds. Zinc(II) methyl pyropheophorbide-a (2) was obtained by refluxing with zincacetate in CH2Cl2. The palladium-catalyzed coupling reaction of complex 2 with phenylmercuric chloride was carried out to give methyl 3b-phenyl pyropheophorbide-a (3). The exocyclic ethyleniclinkage of 3 was oxidized with OsO4 and TPAP/N-methylmorphline N-oxide to afford diketone (4). The condensation of 4 with o-phenylenediamine by TFA catalyzed to givemethyl 3-quinoxalynyl pyropheophorbide-a (5). MPP-a (1) was oxidized by OsO4 and NaIO4 to generate methylpyropheophorbide-d (MPP-d) (6). The one pot reaction of 6 with cyclohexadione and naphthylamine was completed to form methyl 3-benzoacridinyl pyropheophorbide-a (7). The structures of the compounds were characterized by elemental analysis, UV, IR and1H NMR spectra.

Key words: chlorophyll-a, methyl pyropheophorbide-a, chlorin derivatives substituted with heterocycle, photo~dynamic therapy (PDT)