• English
  • 简体中文
Login Register
Current Location: Home > Feedback Help Print

【结 构 式】

【分子编号】12637

【品名】methyl 2-formyl-5-methoxy-1-methyl-1H-indole-3-carboxylate

【CA登记号】

【 分 子 式 】C13H13NO4

【 分 子 量 】247.25056

【元素组成】C 63.15% H 5.3% N 5.66% O 25.88%

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:(XLI)

3) The cyclization of benzoquinone (XXXVII) with 3-amino-4-methoxycrotonic acid methyl ester (XXXVIII) gives 5-hydroxy-2-(methoxymethyl)-1H-indole-3-carboxylic acid methyl ester (XXXIX), which is methylated to 5-methoxy-2-(methoxymethyl)-1-methylindole-3-carboxylic acid methyl ester (XL). The oxidation of (XL) with DDQ yields the corresponding aldehyde (XLI), which is submitted to a Horner-Emmonds condensation with 2-(dimethoxyphosphoryl)acetic acid ethyl ester (XLII) in a basic medium to afford the corresponding acrylic ester (XLIII). The nitration of (XLIII) gives 3-[5-methoxy-3-(methoxycarbonyl)-1-methyl-4-nitroindol-2-yl]acrylic acid ethyl ester (XLIV), the monoethyl ester analogue of compound (XVIII).The reduction of (XLIV) with Sn and 3N HCl in ethanol/water yields the corresponding 4-amino derivative (XLV), which is oxidized with Fremy's salt (nitrodisulfonic acid potassium salt) to afford 3-[5-methoxy-3-(methoxycarbonyl)-1-methyl-4,7-dioxo-4,7-dihydro-1H-indo l -2-yl]acrylic acid ethyl ester (XLVI). The reduction of (XLVI) with Na2S2O4 in CHCl3/ethanol/water gives the corresponding hydroquinone (XLVII), which is first reduced with DIBAL (diisobutylaluminum hydride) in toluene/dichloromethane and then oxidized again with FeCl3 to afford 3-(hydroxymethyl)-2-(3-hydroxy-1-propenyl)-5-methoxy-1-methyl-4,7-dihydro-1H-indole-4,7-dione (XXII). Finally, this compound is treated with aziridine (XXIII) in hot methanol.

1 Bailey, S.M.; Lohmeyer, M.; Dimbleby, R.; Castaner, J.; EO9. Drugs Fut 1996, 21, 2, 143.
2 Kinugawa, M.; Arai, H.; Nishikawa, H.; Masuda, Y.; Ogasa, T.; Tomioka, S.; Kasai, M.; Synthetic studies of the indoloquinone antitumor agent EO9. 13th Int Symp Med Chem (Sept 19-23, Paris) 1994, Abst P250.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XXII) 12618 3-(Hydroxymethyl)-2-[(E)-3-hydroxy-1-propenyl]-5-methoxy-1-methyl-1H-indole-4,7-dione C14H15NO5 详情 详情
(XXIII) 10151 Ethyleneimine; Aziridine; Azirane 151-56-4 C2H5N 详情 详情
(XXXVII) 12633 Quinone; Benzo-1,4-quinone; 2,5-Cyclohexadiene-1,4-dione 106-51-4 C6H4O2 详情 详情
(XXXVIII) 12634 methyl (E)-3-amino-4-methoxy-2-butenoate C6H11NO3 详情 详情
(XXXIX) 12635 methyl 5-hydroxy-2-(methoxymethyl)-1H-indole-3-carboxylate C12H13NO4 详情 详情
(XL) 12636 methyl 5-methoxy-2-(methoxymethyl)-1-methyl-1H-indole-3-carboxylate C14H17NO4 详情 详情
(XLI) 12637 methyl 2-formyl-5-methoxy-1-methyl-1H-indole-3-carboxylate C13H13NO4 详情 详情
(XLII) 10019 Ethyl 2-(diethoxyphosphoryl)acetate; Triethyl phosphonoacetate 867-13-0 C8H17O5P 详情 详情
(XLIII) 12639 methyl 2-[(E)-3-ethoxy-3-oxo-1-propenyl]-5-methoxy-1-methyl-1H-indole-3-carboxylate C17H19NO5 详情 详情
(XLIV) 12640 methyl 2-[(E)-3-ethoxy-3-oxo-1-propenyl]-5-methoxy-1-methyl-4-nitro-1H-indole-3-carboxylate C17H18N2O7 详情 详情
(XLV) 63466 2-propenyl 6-(1-hydroxyethyl)-3-({5-[2-(5-isothiazolyl)ethenyl]-1-[(2-propenyloxy)carbonyl]-3-pyrrolidinyl}sulfanyl)-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate C26H31N3O6S2 详情 详情
(XLVI) 63467 methyl 2-[(E)-3-ethoxy-3-oxo-1-propenyl]-5-methoxy-1-methyl-4,7-dioxo-4,7-dihydro-1H-indole-3-carboxylate C17H17NO7 详情 详情
(XLVII) 63468 methyl 2-[(E)-3-ethoxy-3-oxo-1-propenyl]-4,7-dihydroxy-5-methoxy-1-methyl-1H-indole-3-carboxylate C17H19NO7 详情 详情
Extended Information