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【结 构 式】

【分子编号】28892

【品名】5-methoxy-2-[(E)-2-(4-pyridinyl)ethenyl]-1H-indole

【CA登记号】

【 分 子 式 】C16H14N2O

【 分 子 量 】250.30004

【元素组成】C 76.78% H 5.64% N 11.19% O 6.39%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(E-VIII)

The reaction of 5-methoxyindole-2-carboxylic acid (I) with thionyl chloride gives the acid chloride (II), which is condensed with dimethylamine to afford the amide (III). Reduction of (III) by LiAlH4 leads to the dimethylamino derivative (IV), which is quaternized by methyl iodide to give (V). The ammonium salt (V) is transformed into the corresponding phosphonium iodide (VI) by means of triphenyl phosphine. The successive steps from (I) to the phosphonium iodide (VI) give an overall yield of 50-60%. The condensation of (VI) with 4-formyl pyridine (VII) gives a mixture of 70% cis-(Z-VIII) and 30% trans-(E-VIII) isomers. The mixture of indolyl-pyridylethylenes (Z-VIII) and (E-VIII) is cyclized to 10-methoxy-7H-pyrido[4,3-c]carbazole (IX) by irradiation for 90 h in a Rayonet photoreactor at 350 nm in the presence of iodine (40% yield). Dimerization of (IX) is achieved by strirring in DMF two equivalents of (IX) with one equivalent of 1,1'-bis(2-chloroethyl)-4,4'-bipiperidine dihydrochloride (X) at 85 C for 18 h and recrystallization in EtOH/H20 (40/60).

1 Bible, R.; Yuan, J.J.; Yang, D.-C.; Zhang, J.Y.; Findlay, J.W.; Karim, A.; Compt Rend Acad Sci 1976, 283, 9, 1109-1112.
2 Pelaprat. D.; et al.; DNA intercalating comnpounds as potential antitumor agents. 2. Preparation and properties of 7H-pyridocarbazole dimers. J Med Chem 1980, 23, 12, 1336-1343.
3 Pelaprat. D.; et al.; DNA intercalating comnpounds as potential antitumor agents. 1. Preparation and properties of 7H-pyridocarbazoles. J Med Chem 1980, 23, 12, 1330-1335.
4 Serradell, M.N.; Castaner, J.; Ditercalinium Chloride. Drugs Fut 1985, 10, 2, 116.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(Z-VIII) 28891 5-methoxy-2-[(Z)-2-(4-pyridinyl)ethenyl]-1H-indole C16H14N2O 详情 详情
(E-VIII) 28892 5-methoxy-2-[(E)-2-(4-pyridinyl)ethenyl]-1H-indole C16H14N2O 详情 详情
(I) 28885 5-methoxy-1H-indole-2-carboxylic acid 4382-54-1 C10H9NO3 详情 详情
(II) 28885 5-methoxy-1H-indole-2-carboxylic acid 4382-54-1 C10H9NO3 详情 详情
(III) 28887 5-methoxy-N,N-dimethyl-1H-indole-2-carboxamide C12H14N2O2 详情 详情
(IV) 28888 (5-methoxy-1H-indol-2-yl)-N,N-dimethylmethanamine C12H16N2O 详情 详情
(V) 28889 (5-methoxy-1H-indol-2-yl)-N,N,N-trimethylmethanaminium iodide C13H19IN2O 详情 详情
(VI) 28890 [(5-methoxy-1H-indol-2-yl)methyl](triphenyl)phosphonium iodide C28H25INOP 详情 详情
(VII) 17203 4-Pyridinecarboxaldehyde; isonicotinaldehyde 872-85-5 C6H5NO 详情 详情
(IX) 28893 10-methoxy-7H-pyrido[3,4-c]carbazole C16H12N2O 详情 详情
(X) 28894 1,1'-Bis-(2-chloro-ethyl)-[4,4']bipiperidinyl C14H26Cl2N2 详情 详情
Extended Information