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    首页 分子通 按分子结构分类 有机化合物 有机杂环化合物 四吡咯及其衍生物

    四吡咯及其衍生物

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— Isouroporphyrin (ii) octamethyl ester —— C48H54N4O16
    Isouroporphyrin (ii) octamethyl ester
    —— Methyl 17-ethenyl-12-ethyl-3-methoxy-13,18,22,27-tetramethyl-5-oxo-23-[3-oxo-3-(3,7,11,15-tetramethylhexadec-2-enoxy)propyl]-4-oxa-8,24,25,26-tetrazahexacyclo[19.2.1.16,9.111,14.116,19.02,7]heptacosa-1,6(27),7,9,11(26),12,14,16(25),17,19,21(24)-undecaene-3-carboxylate —— C56H74N4O7
    Methyl 17-ethenyl-12-ethyl-3-methoxy-13,18,22,27-tetramethyl-5-oxo-23-[3-oxo-3-(3,7,11,15-tetramethylhexadec-2-enoxy)propyl]-4-oxa-8,24,25,26-tetrazahexacyclo[19.2.1.16,9.111,14.116,19.02,7]heptacosa-1,6(27),7,9,11(26),12,14,16(25),17,19,21(24)-undecaene-3-carboxylate
    —— Methyl 7,17-bis(2-methoxy-2-oxoethyl)-3,8,12,13,18-pentakis(3-methoxy-3-oxopropyl)porphyrin-2-carboxylate —— C48H52N4O16
    Methyl 7,17-bis(2-methoxy-2-oxoethyl)-3,8,12,13,18-pentakis(3-methoxy-3-oxopropyl)porphyrin-2-carboxylate
    —— 2-[3-[18-(2-carboxyethyl)-3,3,7,12,17-pentamethyl-2H-porphyrin-2-yl]propanoylamino]-4-methylpentanoic acid —— C37H43N5O5
    2-[3-[18-(2-carboxyethyl)-3,3,7,12,17-pentamethyl-2H-porphyrin-2-yl]propanoylamino]-4-methylpentanoic acid
    —— Methyl 3-[12,18-bis(2-methoxy-2-oxoethyl)-4,13,22-tris(3-methoxy-3-oxopropyl)-8,26-dimethyl-6,24-dioxo-5,23-dioxa-27,28,29,30-tetrazaheptacyclo[19.5.1.13,9.111,14.116,19.04,8.022,26]triaconta-1(27),2,9(30),10,12,14(29),15,17,19(28),20-decaen-17-yl]propanoate —— C48H52N4O16
    Methyl 3-[12,18-bis(2-methoxy-2-oxoethyl)-4,13,22-tris(3-methoxy-3-oxopropyl)-8,26-dimethyl-6,24-dioxo-5,23-dioxa-27,28,29,30-tetrazaheptacyclo[19.5.1.13,9.111,14.116,19.04,8.022,26]triaconta-1(27),2,9(30),10,12,14(29),15,17,19(28),20-decaen-17-yl]propanoate
    —— methyl 16-ethenyl-11-ethyl-3-hydroxy-12,17,21,26-tetramethyl-4-oxo-22-{3-oxo-3-[(3,7,11,15-tetramethylhexadec-2-en-1-yl)oxy]propyl}-7,23,24,25-tetraazahexacyclo[18.2.1.1⁵,⁸.1¹⁰,¹³.1¹⁵,¹⁸.0²,⁶]hexacosa-1,5,8(26),9,11,13(25),14,16,18,20(23)-decaene-3-carboxylate —— C55H74N4O6
    methyl 16-ethenyl-11-ethyl-3-hydroxy-12,17,21,26-tetramethyl-4-oxo-22-{3-oxo-3-[(3,7,11,15-tetramethylhexadec-2-en-1-yl)oxy]propyl}-7,23,24,25-tetraazahexacyclo[18.2.1.1⁵,⁸.1¹⁰,¹³.1¹⁵,¹⁸.0²,⁶]hexacosa-1,5,8(26),9,11,13(25),14,16,18,20(23)-decaene-3-carboxylate
    —— 4-[20-(2-carboxyethyl)-10,15-bis(ethenyl)-5,19-dimethyl-21,22,23,24-tetrazapentacyclo[16.2.1.13,6.18,11.113,16]tetracosa-1,3(24),4,6,8,10,12,14,16(22),17-decaen-2-yl]butanoicacid —— C34H34N4O4
    4-[20-(2-carboxyethyl)-10,15-bis(ethenyl)-5,19-dimethyl-21,22,23,24-tetrazapentacyclo[16.2.1.13,6.18,11.113,16]tetracosa-1,3(24),4,6,8,10,12,14,16(22),17-decaen-2-yl]butanoicacid
    —— Octadecyl 3-[11-ethyl-16-(1-hydroxyethyl)-12,17,19,21,26-pentamethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),16,18,20(23)-undecaen-22-yl]propanoate —— C52H72N4O4
    Octadecyl 3-[11-ethyl-16-(1-hydroxyethyl)-12,17,19,21,26-pentamethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),16,18,20(23)-undecaen-22-yl]propanoate
    —— methyl 16-ethenyl-11-ethyl-22-(3-methoxy-3-oxopropyl)-12,17,21,26-tetramethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),7,9,11,13,15,17,19-decaene-3-carboxylate —— C36H38N4O5
    methyl 16-ethenyl-11-ethyl-22-(3-methoxy-3-oxopropyl)-12,17,21,26-tetramethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),7,9,11,13,15,17,19-decaene-3-carboxylate
    —— Methyl 3-[16-(1-hydroxyethyl)-12,17,21,26-tetramethyl-11-(2-methylpropyl)-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),16,18,20(23)-undecaen-22-yl]propanoate —— C36H40N4O4
    Methyl 3-[16-(1-hydroxyethyl)-12,17,21,26-tetramethyl-11-(2-methylpropyl)-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),16,18,20(23)-undecaen-22-yl]propanoate
    —— 12,23-Diethyl-13,17,18,22,27-pentamethyl-8,24,25,26-tetrazahexacyclo[19.2.1.16,9.111,14.116,19.02,7]heptacosa-1(24),2(7),6(27),8,10,12,14(26),15,17,19(25),20,22-dodecaene —— C32H34N4
    12,23-Diethyl-13,17,18,22,27-pentamethyl-8,24,25,26-tetrazahexacyclo[19.2.1.16,9.111,14.116,19.02,7]heptacosa-1(24),2(7),6(27),8,10,12,14(26),15,17,19(25),20,22-dodecaene
    —— 3-[18-(2-carboxylatoethyl)-3,8,13,17-tetramethyl-22,23-dihydroporphyrin-21,24-diium-2-yl]propanoate —— C30H30N4O4
    3-[18-(2-carboxylatoethyl)-3,8,13,17-tetramethyl-22,23-dihydroporphyrin-21,24-diium-2-yl]propanoate
    —— 3-[3-[5-[(4-ethenyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-2-[2-[[5-formyl-3-(2-hydroxyethyl)-4-methyl-1H-pyrrol-2-yl]methyl]-5-methoxycarbonyl-3-methyl-4-oxo-1H-cyclopenta[b]pyrrol-6-ylidene]-4-methyl-3,4-dihydropyrrol-3-yl]propanoyloxy]-4-hydroxy-3,4-dihydro-2H-pyran-2,6-dicarboxylic acid —— C42H46N4O14
    3-[3-[5-[(4-ethenyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-2-[2-[[5-formyl-3-(2-hydroxyethyl)-4-methyl-1H-pyrrol-2-yl]methyl]-5-methoxycarbonyl-3-methyl-4-oxo-1H-cyclopenta[b]pyrrol-6-ylidene]-4-methyl-3,4-dihydropyrrol-3-yl]propanoyloxy]-4-hydroxy-3,4-dihydro-2H-pyran-2,6-dicarboxylic acid
    —— 3-[2-[[3-(2-carboxyethyl)-5-[(4-ethyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-4-methyl-1H-pyrrol-2-yl]methyl]-5-[(4-ethyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-4-methyl-1H-pyrrol-3-yl]propanoic acid —— C33H44N4O6
    3-[2-[[3-(2-carboxyethyl)-5-[(4-ethyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-4-methyl-1H-pyrrol-2-yl]methyl]-5-[(4-ethyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-4-methyl-1H-pyrrol-3-yl]propanoic acid
    —— methyl2-[16-ethenyl-22-(3-henicosoxy-3-oxopropyl)-12,17,26-trimethyl-4-oxo-5-oxa-23,24,25,27-tetrazahexacyclo[18.2.1.17,10.111,14.115,18.02,6]heptacosa-1(23),2(6),7(27),8,10,12,14,16,18,20(24)-decaen-21-yl]-2-hydroxyacetate —— C55H76N4O7
    methyl2-[16-ethenyl-22-(3-henicosoxy-3-oxopropyl)-12,17,26-trimethyl-4-oxo-5-oxa-23,24,25,27-tetrazahexacyclo[18.2.1.17,10.111,14.115,18.02,6]heptacosa-1(23),2(6),7(27),8,10,12,14,16,18,20(24)-decaen-21-yl]-2-hydroxyacetate
    —— 5-[3-[2-[[3-(2-carboxyethyl)-5-[(3-ethenyl-4-methyl-5-oxopyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-2-yl]methyl]-5-[(4-ethenyl-3-methyl-5-oxopyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-3-yl]propanoyloxy]-3,4,6-trihydroxyoxane-2-carboxylic acid —— C39H44N4O12
    5-[3-[2-[[3-(2-carboxyethyl)-5-[(3-ethenyl-4-methyl-5-oxopyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-2-yl]methyl]-5-[(4-ethenyl-3-methyl-5-oxopyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-3-yl]propanoyloxy]-3,4,6-trihydroxyoxane-2-carboxylic acid
    —— methyl2-[16-ethenyl-11-(hydroxymethyl)-17,21,26-trimethyl-4-oxo-22-[3-oxo-3-(3,7,11,15-tetramethylhexadec-2-enoxy)propyl]-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),8,10(25),11,13,15,17,19-decaen-3-yl]propanoate —— C55H74N4O6
    methyl2-[16-ethenyl-11-(hydroxymethyl)-17,21,26-trimethyl-4-oxo-22-[3-oxo-3-(3,7,11,15-tetramethylhexadec-2-enoxy)propyl]-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),8,10(25),11,13,15,17,19-decaen-3-yl]propanoate
    —— 3-(16-ethenyl-4-methoxycarbonyl-12,17,21,26-tetramethyl-3-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),8,10,12,14,16,18,20(24),21-undecaen-22-yl)propanoicacid —— C35H34N4O5
    3-(16-ethenyl-4-methoxycarbonyl-12,17,21,26-tetramethyl-3-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),8,10,12,14,16,18,20(24),21-undecaen-22-yl)propanoicacid
    —— 3-[18-(2-Carboxyethyl)-7-ethenyl-17-formyl-12-(1-hydroxy-5,9,13-trimethyltetradeca-4,8,12-trienyl)-3,8,13-trimethylporphyrin-2-yl]propanoic acid —— C49H56N4O6
    3-[18-(2-Carboxyethyl)-7-ethenyl-17-formyl-12-(1-hydroxy-5,9,13-trimethyltetradeca-4,8,12-trienyl)-3,8,13-trimethylporphyrin-2-yl]propanoic acid
    —— Methyl 3-[26-ethyl-12-formyl-16-(1-hydroxyethyl)-17,19,21-trimethyl-4-oxo-11-propyl-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),16,18,20(23)-undecaen-22-yl]propanoate —— C37H40N4O5
    Methyl 3-[26-ethyl-12-formyl-16-(1-hydroxyethyl)-17,19,21-trimethyl-4-oxo-11-propyl-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),16,18,20(23)-undecaen-22-yl]propanoate
    —— bilirubin IXα —— C33H36N4O6
    bilirubin IXα
    —— 3-(2-{[3-(2-carboxyethyl)-5-[(4-ethyl-3-methyl-5-oxo-2,5-dihydro-1H-pyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-2-yl]methylidene}-5-[(3-ethyl-4-methyl-5-oxo-2,5-dihydro-1H-pyrrol-2-ylidene)methyl]-4-methyl-2H-pyrrol-3-yl)propanoic acid —— C33H38N4O6
    3-(2-{[3-(2-carboxyethyl)-5-[(4-ethyl-3-methyl-5-oxo-2,5-dihydro-1H-pyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-2-yl]methylidene}-5-[(3-ethyl-4-methyl-5-oxo-2,5-dihydro-1H-pyrrol-2-ylidene)methyl]-4-methyl-2H-pyrrol-3-yl)propanoic acid
    —— 3-(16-ethenyl-11-ethyl-12-formyl-3-methoxycarbonyl-17,21,26-trimethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10,12,14,16,18,20(23)-decaen-22-yl)propanoic acid —— C35H34N4O6
    3-(16-ethenyl-11-ethyl-12-formyl-3-methoxycarbonyl-17,21,26-trimethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10,12,14,16,18,20(23)-decaen-22-yl)propanoic acid
    —— Tolyporphin G —— C26H24N4O5
    Tolyporphin G
    —— Methyl 3-[11-butan-2-yl-26-ethyl-16-(1-hydroxyethyl)-12,17,21-trimethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),16,18,20(23)-undecaen-22-yl]propanoate —— C37H42N4O4
    Methyl 3-[11-butan-2-yl-26-ethyl-16-(1-hydroxyethyl)-12,17,21-trimethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),16,18,20(23)-undecaen-22-yl]propanoate
    —— Methyl 3-[3,8,13,18-tetrakis(2-methoxy-2-oxoethyl)-7,12,17-tris(3-methoxy-3-oxopropyl)porphyrin-2-yl]propanoate —— C48H52N4O16
    Methyl 3-[3,8,13,18-tetrakis(2-methoxy-2-oxoethyl)-7,12,17-tris(3-methoxy-3-oxopropyl)porphyrin-2-yl]propanoate
    —— methyl 6-[5-[(4-ethenyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-3-(3-methoxy-3-oxopropyl)-4-methyl-3,4-dihydropyrrol-2-ylidene]-2-[[5-formyl-3-(2-hydroxyethyl)-4-methyl-1H-pyrrol-2-yl]methyl]-3-methyl-4-oxo-1H-cyclopenta[b]pyrrole-5-carboxylate —— C36H42N4O8
    methyl 6-[5-[(4-ethenyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-3-(3-methoxy-3-oxopropyl)-4-methyl-3,4-dihydropyrrol-2-ylidene]-2-[[5-formyl-3-(2-hydroxyethyl)-4-methyl-1H-pyrrol-2-yl]methyl]-3-methyl-4-oxo-1H-cyclopenta[b]pyrrole-5-carboxylate
    —— 3-[2-[[3-(2-carboxyethyl)-5-[(3-ethylidene-4-methyl-5-oxopyrrolidin-2-ylidene)methyl]-4-methyl-1H-pyrrol-2-yl]methylidene]-5-[(4-ethenyl-3-methyl-5-oxopyrrol-2-yl)methylidene]-4-methylpyrrol-3-yl]propanoic acid 6917-60-8 C33H36N4O6
    3-[2-[[3-(2-carboxyethyl)-5-[(3-ethylidene-4-methyl-5-oxopyrrolidin-2-ylidene)methyl]-4-methyl-1H-pyrrol-2-yl]methylidene]-5-[(4-ethenyl-3-methyl-5-oxopyrrol-2-yl)methylidene]-4-methylpyrrol-3-yl]propanoic acid
    —— Methyl 3-[8,13-bis(1-hydroxyethyl)-18-(3-methoxy-3-oxopropyl)-3,7,12,17-tetramethylporphyrin-2-yl]propanoate —— C36H40N4O6
    Methyl 3-[8,13-bis(1-hydroxyethyl)-18-(3-methoxy-3-oxopropyl)-3,7,12,17-tetramethylporphyrin-2-yl]propanoate
    —— (12-Hydroxy-2,8,12,17-tetramethyl-3,13-dioxoporphyrin-2-yl) acetate —— C26H22N4O5
    (12-Hydroxy-2,8,12,17-tetramethyl-3,13-dioxoporphyrin-2-yl) acetate
    —— 3-[8,12,17-Tris(2-carboxyethyl)-3,7,13,18-tetramethyl-21,23-dihydroporphyrin-2-yl]propanoic acid —— C36H38N4O8
    3-[8,12,17-Tris(2-carboxyethyl)-3,7,13,18-tetramethyl-21,23-dihydroporphyrin-2-yl]propanoic acid
    —— 3-[5-[(4-ethenyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-2-[2-[[5-formyl-3-(2-hydroxyethyl)-4-methyl-1H-pyrrol-2-yl]methyl]-5-methoxycarbonyl-3-methyl-4-oxo-1H-cyclopenta[b]pyrrol-6-ylidene]-4-methyl-3,4-dihydropyrrol-3-yl]propanoic acid —— C35H40N4O8
    3-[5-[(4-ethenyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-2-[2-[[5-formyl-3-(2-hydroxyethyl)-4-methyl-1H-pyrrol-2-yl]methyl]-5-methoxycarbonyl-3-methyl-4-oxo-1H-cyclopenta[b]pyrrol-6-ylidene]-4-methyl-3,4-dihydropyrrol-3-yl]propanoic acid
    —— 1-O-methyl17-O-(3,7,11,15-tetramethylhexadec-2-enyl)4-(17-ethenyl-23-ethoxy-22-ethyl-12,27-dimethyl-5-oxo-4-oxa-8,18,28,29-tetrazaheptacyclo[19.5.1.16,9.111,14.116,19.02,7.024,26]triaconta-1,6,9(30),10,13,15,17,19,21(28),22,24-undecaen-17-yl)heptanedioate —— C57H78N4O7
    1-O-methyl17-O-(3,7,11,15-tetramethylhexadec-2-enyl)4-(17-ethenyl-23-ethoxy-22-ethyl-12,27-dimethyl-5-oxo-4-oxa-8,18,28,29-tetrazaheptacyclo[19.5.1.16,9.111,14.116,19.02,7.024,26]triaconta-1,6,9(30),10,13,15,17,19,21(28),22,24-undecaen-17-yl)heptanedioate
    —— 3-[8,12,17-Tris(2-carboxyethyl)-13-(carboxymethyl)-3,7,18-trimethylporphyrin-2-yl]propanoic acid —— C37H36N4O10
    3-[8,12,17-Tris(2-carboxyethyl)-13-(carboxymethyl)-3,7,18-trimethylporphyrin-2-yl]propanoic acid
    —— 3-[16-ethenyl-11-(hydroxymethyl)-4-methoxycarbonyl-17,26-dimethyl-3-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),8,10(25),11,13,15,17,19-decaen-22-yl]propanoicacid —— C35H36N4O6
    3-[16-ethenyl-11-(hydroxymethyl)-4-methoxycarbonyl-17,26-dimethyl-3-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),8,10(25),11,13,15,17,19-decaen-22-yl]propanoicacid
    —— 3-[8,12,17-tris(2-carboxyethyl)-3,7,13,18-tetrakis(carboxymethyl)-3-methyl-10,15,20,22,23,24-hexahydro-2H-porphyrin-2-yl]propanoic acid —— C41H46N4O16
    3-[8,12,17-tris(2-carboxyethyl)-3,7,13,18-tetrakis(carboxymethyl)-3-methyl-10,15,20,22,23,24-hexahydro-2H-porphyrin-2-yl]propanoic acid
    —— 4-[10,14,20-tris(carboxymethyl)-15-[3-carboxy-1-(carboxymethyl)propyl]-21-(3-hydroxy-3-oxopropyl)-9,13,22,23,24-pentazapentacyclo[16.2.1.13,6.18,11.112,16]tetracosa-1(21),2,4,6(24),7,9,11(23),12(22),13,16,18-undecaen-5-yl]butanoicacid —— C40H36N4O17
    4-[10,14,20-tris(carboxymethyl)-15-[3-carboxy-1-(carboxymethyl)propyl]-21-(3-hydroxy-3-oxopropyl)-9,13,22,23,24-pentazapentacyclo[16.2.1.13,6.18,11.112,16]tetracosa-1(21),2,4,6(24),7,9,11(23),12(22),13,16,18-undecaen-5-yl]butanoicacid
    —— 3-[2-[[3-(2-carboxyethyl)-5-[(4-ethyl-3-methyl-5-oxopyrrolidin-2-yl)methyl]-4-methyl-1H-pyrrol-2-yl]methyl]-5-[(3-ethyl-4-methyl-5-oxopyrrolidin-2-yl)methyl]-4-methyl-2H-pyrrol-3-yl]propanoic acid —— C33H48N4O6
    3-[2-[[3-(2-carboxyethyl)-5-[(4-ethyl-3-methyl-5-oxopyrrolidin-2-yl)methyl]-4-methyl-1H-pyrrol-2-yl]methyl]-5-[(3-ethyl-4-methyl-5-oxopyrrolidin-2-yl)methyl]-4-methyl-2H-pyrrol-3-yl]propanoic acid