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    首页 分子通 按分子结构分类 有机化合物 生物碱及其衍生物 依波格型生物碱

    依波格型生物碱

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— (1R,15S)-N-[2-(dimethylamino)ethyl]-17-ethyl-7-hydroxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxamide —— C24H34N4O2
    (1R,15S)-N-[2-(dimethylamino)ethyl]-17-ethyl-7-hydroxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxamide
    —— [(1R,15S,17S)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-yl] 3-(dimethylamino)propanoate —— C24H33N3O2
    [(1R,15S,17S)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-yl] 3-(dimethylamino)propanoate
    —— [(1R,15S)-3-dimethoxyphosphoryl-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-yl] 4-methylpiperazine-1-carboxylate —— C27H39N4O5P
    [(1R,15S)-3-dimethoxyphosphoryl-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-yl] 4-methylpiperazine-1-carboxylate
    —— (1R,15S)-N-[2-(dimethylamino)ethyl]-17-ethyl-7-methyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxamide —— C25H36N4O
    (1R,15S)-N-[2-(dimethylamino)ethyl]-17-ethyl-7-methyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxamide
    —— ethyl (1R,15S)-17-ethyl-7-methyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxylate —— C23H30N2O2
    ethyl (1R,15S)-17-ethyl-7-methyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxylate
    —— [(1R,15S,17S)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-yl]methanol —— C20H26N2O
    [(1R,15S,17S)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-yl]methanol
    —— ethyl (1R,15S)-17-ethyl-7-hydroxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxylate —— C22H28N2O3
    ethyl (1R,15S)-17-ethyl-7-hydroxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxylate
    —— [(1R,15S,17S)-3-[3-(dimethylamino)propanoyl]-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-yl] 3-(dimethylamino)propanoate —— C29H42N4O3
    [(1R,15S,17S)-3-[3-(dimethylamino)propanoyl]-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-yl] 3-(dimethylamino)propanoate
    —— (1R,15S)-3-dimethoxyphosphoryl-17-ethyl-7-methyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene —— C22H31N2O3P
    (1R,15S)-3-dimethoxyphosphoryl-17-ethyl-7-methyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene
    —— 3-(dimethylamino)-1-[(1R,15S,17S)-17-ethyl-7-hydroxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-3-yl]propan-1-one —— C24H33N3O2
    3-(dimethylamino)-1-[(1R,15S,17S)-17-ethyl-7-hydroxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-3-yl]propan-1-one
    —— ethyl (1R,15S)-17-ethyl-7-(4-methylpiperazine-1-carbonyl)oxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxylate —— C28H38N4O4
    ethyl (1R,15S)-17-ethyl-7-(4-methylpiperazine-1-carbonyl)oxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-3-carboxylate
    —— (15R)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxamide —— C20H23N3O
    (15R)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxamide
    —— 1-[(1R,15S,17S)-7-(boranylidyne-lambda4-sulfanyl)oxy-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-3-yl]ethanone —— C21H25BN2O2S
    1-[(1R,15S,17S)-7-(boranylidyne-lambda4-sulfanyl)oxy-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-3-yl]ethanone
    —— (2S,4S,6S)-2-[(1R,15S,17S)-17-ethyl-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-3-yl]-6-(hydroxymethyl)oxane-3,4,5-triol —— C26H36N2O6
    (2S,4S,6S)-2-[(1R,15S,17S)-17-ethyl-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-3-yl]-6-(hydroxymethyl)oxane-3,4,5-triol
    —— (1S)-1-[(4S,5R)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-[(1R,15S,17S)-7-[(2S)-2-[(4S,5R)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-hydroxyethoxy]-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-3-yl]ethanol —— C43H64N2O11
    (1S)-1-[(4S,5R)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-[(1R,15S,17S)-7-[(2S)-2-[(4S,5R)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-hydroxyethoxy]-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-3-yl]ethanol
    —— methyl (1S,15R,18R)-17-ethyl-3-aza-13-azoniapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate —— C21H25N2O2+
    methyl (1S,15R,18R)-17-ethyl-3-aza-13-azoniapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate
    —— methyl (1S,15R,18R)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate —— C21H24N2O2
    methyl (1S,15R,18R)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate
    —— (12-Methoxyibogamin-18-yl)methanol —— C21H28N2O2
    (12-Methoxyibogamin-18-yl)methanol
    —— 17-Ethyl-7-methoxy-3-methyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene —— C21H28N2O
    17-Ethyl-7-methoxy-3-methyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene
    —— 17-ethyl-3-aza-13-azoniapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-ol;chloride —— C19H25ClN2O
    17-ethyl-3-aza-13-azoniapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-7-ol;chloride
    —— methyl (1S,15S,17S,18S)-17-ethyl-6,7-dimethoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate —— C23H30N2O4
    methyl (1S,15S,17S,18S)-17-ethyl-6,7-dimethoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate
    —— methyl (1R,12R,14R)-12-[(1R,15S,17S,18S)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-6-yl]-15-ethylidene-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraene-18-carboxylate —— C40H48N4O2
    methyl (1R,12R,14R)-12-[(1R,15S,17S,18S)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-6-yl]-15-ethylidene-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraene-18-carboxylate
    —— methyl (1S,15S,17S,18S)-17-ethyl-6-[(1R,12R,14R)-15-ethylidene-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate 3371-85-5 C43H52N4O5
    methyl (1S,15S,17S,18S)-17-ethyl-6-[(1R,12R,14R)-15-ethylidene-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate
    —— (1R,15S,17S,18S)-17-ethyl-6-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene —— C20H26N2O
    (1R,15S,17S,18S)-17-ethyl-6-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene
    —— Ervatamia heyneana B668619K507 —— C22H26N2O4
    Ervatamia heyneana B668619K507
    —— Methoxyeglandine N-oxide —— C22H26N2O5
    Methoxyeglandine N-oxide
    —— Alkaloid V(keton) 64192-91-2 C46H56N4O6
    Alkaloid V(keton)
    —— Methyl 12-[1-[(3,4-dimethoxybenzoyl)oxymethyl]-17-ethyl-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraen-6-yl]-15-ethylidene-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraene-18-carboxylate —— C51H60N4O7
    Methyl 12-[1-[(3,4-dimethoxybenzoyl)oxymethyl]-17-ethyl-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraen-6-yl]-15-ethylidene-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraene-18-carboxylate
    —— Methyl 17-ethyl-6-(15-ethylidene-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl)-7-methoxy-14-(2-oxopropyl)-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate —— C46H56N4O6
    Methyl 17-ethyl-6-(15-ethylidene-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl)-7-methoxy-14-(2-oxopropyl)-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate
    —— catharanthine hydrogen sulfate —— 2C21H24N2O2*H2O4S
    catharanthine hydrogen sulfate
    —— Methyl 11-acetyloxy-12-ethyl-10-hydroxy-5-methoxy-8-methyl-8,16-diazapentacyclo[10.6.1.01,9.02,7.016,19]nonadeca-2(7),3,5,13-tetraene-10-carboxylate;methyl 17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate —— C46H56N4O8
    Methyl 11-acetyloxy-12-ethyl-10-hydroxy-5-methoxy-8-methyl-8,16-diazapentacyclo[10.6.1.01,9.02,7.016,19]nonadeca-2(7),3,5,13-tetraene-10-carboxylate;methyl 17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate
    —— Methyl 13-benzyl-17-ethyl-3-aza-13-azoniapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate —— C28H31N2O2+
    Methyl 13-benzyl-17-ethyl-3-aza-13-azoniapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate
    —— Methyl 6-methyl-3,4-didehydroibogamin-6-ium-18-carboxylate —— C22H27N2O2+
    Methyl 6-methyl-3,4-didehydroibogamin-6-ium-18-carboxylate
    —— methyl (1R)-3-(benzenesulfonyl)-11-(bromomethyl)-3,12-diazapentacyclo[12.3.1.02,10.04,9.012,17]octadeca-2(10),4,6,8,15-pentaene-1-carboxylate —— C25H23BrN2O4S
    methyl (1R)-3-(benzenesulfonyl)-11-(bromomethyl)-3,12-diazapentacyclo[12.3.1.02,10.04,9.012,17]octadeca-2(10),4,6,8,15-pentaene-1-carboxylate
    —— methyl (1R)-15-oxo-3,12-diazapentacyclo[12.3.1.02,10.04,9.012,17]octadeca-2(10),4,6,8-tetraene-1-carboxylate —— C18H18N2O3
    methyl (1R)-15-oxo-3,12-diazapentacyclo[12.3.1.02,10.04,9.012,17]octadeca-2(10),4,6,8-tetraene-1-carboxylate
    —— methyl (1R)-3-(benzenesulfonyl)-11-methylidene-3,12-diazapentacyclo[12.3.1.02,10.04,9.012,17]octadeca-2(10),4,6,8,15-pentaene-1-carboxylate —— C25H22N2O4S
    methyl (1R)-3-(benzenesulfonyl)-11-methylidene-3,12-diazapentacyclo[12.3.1.02,10.04,9.012,17]octadeca-2(10),4,6,8,15-pentaene-1-carboxylate
    —— Obovatine —— C43H52N4O6
    Obovatine
    —— methyl (1S,18R)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate;hydrochloride —— C21H25ClN2O2
    methyl (1S,18R)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8,16-pentaene-1-carboxylate;hydrochloride
    —— Voacanginol —— C21H28N2O2
    Voacanginol
    —— methyl (17R)-17-ethyl-6,7-dimethoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate —— C23H30N2O4
    methyl (17R)-17-ethyl-6,7-dimethoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate
    —— methyl (17R)-17-ethyl-6-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-1-carboxylate —— C22H28N2O3
    methyl (17R)-17-ethyl-6-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-1-carboxylate
    —— 17-Ethyl-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene;hydrochloride —— C20H27ClN2O
    17-Ethyl-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene;hydrochloride
    —— Catharanthine lactam —— C20H19IN2O3
    Catharanthine lactam
    —— (1S)-1-[(1R,15R,17R,18R)-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-17-yl]ethanol —— C20H26N2O2
    (1S)-1-[(1R,15R,17R,18R)-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraen-17-yl]ethanol
    —— methyl (1S,15S,17S,18S)-17-ethyl-5-[(1S,12R,14S,15E)-15-ethylidene-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-6-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-1-carboxylate —— C43H52N4O5
    methyl (1S,15S,17S,18S)-17-ethyl-5-[(1S,12R,14S,15E)-15-ethylidene-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-6-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-1-carboxylate
    —— methyl (1S,15S,17S)-17-ethyl-6,7-dimethoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate —— C23H30N2O4
    methyl (1S,15S,17S)-17-ethyl-6,7-dimethoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate
    —— methyl (1S,15R,17S,18S)-17-ethyl-6-[(1R,15E,18S)-15-ethylidene-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate 3371-85-5 C43H52N4O5
    methyl (1S,15R,17S,18S)-17-ethyl-6-[(1R,15E,18S)-15-ethylidene-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate
    —— methyl (15S,17S)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate —— C21H26N2O2
    methyl (15S,17S)-17-ethyl-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate
    —— (1R,15S,17S)-17-ethyl-6-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene —— C20H26N2O
    (1R,15S,17S)-17-ethyl-6-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene
    —— methyl (1S,15S,17S,18S)-17-ethyl-6-[(1R,12R,15E)-15-ethylidene-18-methoxycarbonyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate —— C42H50N4O5
    methyl (1S,15S,17S,18S)-17-ethyl-6-[(1R,12R,15E)-15-ethylidene-18-methoxycarbonyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-7-methoxy-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate