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more general categories information about this item 03. Biological Effects of Specific Chemicals 03. Biological Effects of Specific Chemicals biochemical uses [CHEBI:52206] (3306) enzyme inhibitor [CHEBI:23924] (825) topoisomerase inhibitor [CHEBI:70727] (29) topoisomerase I inhibitor [CHEBI:50276] (11) topotecan [CHEBI:63632] (1) 05. Industrial Uses 05. Industrial Uses pharmaceutical [CHEBI:52217] (1978) drug [CHEBI:23888] (1930) antineoplastic agent [CHEBI:35610] (760) topotecan [CHEBI:63632] (1) 08. Chemical Category 08. Chemical Category main group molecular entity [CHEBI:33579] (25650) p-block molecular entity [CHEBI:33675] (25343) pnictogen molecular entity [CHEBI:33302] (10027) nitrogen molecular entity [CHEBI:51143] (7930) organonitrogen compound [CHEBI:35352] (6705) organonitrogen heterocyclic compound [CHEBI:38101] (3202) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) chalcogen molecular entity [CHEBI:33304] (15225) oxygen molecular entity [CHEBI:25806] (14414) organooxygen compound [CHEBI:36963] (11352) oxacycle [CHEBI:38104] (2002) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organochalcogen compound [CHEBI:36962] (11874) organooxygen compound [CHEBI:36963] (11352) oxacycle [CHEBI:38104] (2002) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) carbon group molecular entity [CHEBI:33582] (23847) organic molecular entity [CHEBI:50860] (23769) heteroorganic entity [CHEBI:33285] (15197) organic heterocyclic compound [CHEBI:24532] (5243) organonitrogen heterocyclic compound [CHEBI:38101] (3202) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) oxacycle [CHEBI:38104] (2002) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organic heteropolycyclic compound [CHEBI:38166] (2613) organic heteropentacyclic compound [CHEBI:38164] (100) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organonitrogen compound [CHEBI:35352] (6705) organonitrogen heterocyclic compound [CHEBI:38101] (3202) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organochalcogen compound [CHEBI:36962] (11874) organooxygen compound [CHEBI:36963] (11352) oxacycle [CHEBI:38104] (2002) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organic molecule [CHEBI:72695] (11399) organic cyclic compound [CHEBI:33832] (7633) organic heterocyclic compound [CHEBI:24532] (5243) organonitrogen heterocyclic compound [CHEBI:38101] (3202) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) oxacycle [CHEBI:38104] (2002) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organic heteropolycyclic compound [CHEBI:38166] (2613) organic heteropentacyclic compound [CHEBI:38164] (100) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) polyatomic entity [CHEBI:36357] (18777) molecule [CHEBI:25367] (11520) cyclic compound [CHEBI:33595] (7817) polycyclic compound [CHEBI:33635] (4078) heteropolycyclic compound [CHEBI:33671] (2613) organic heteropolycyclic compound [CHEBI:38166] (2613) organic heteropentacyclic compound [CHEBI:38164] (100) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organic cyclic compound [CHEBI:33832] (7633) organic heterocyclic compound [CHEBI:24532] (5243) organonitrogen heterocyclic compound [CHEBI:38101] (3202) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) oxacycle [CHEBI:38104] (2002) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organic heteropolycyclic compound [CHEBI:38166] (2613) organic heteropentacyclic compound [CHEBI:38164] (100) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) heterocyclic compound [CHEBI:5686] (5275) organic heterocyclic compound [CHEBI:24532] (5243) organonitrogen heterocyclic compound [CHEBI:38101] (3202) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) oxacycle [CHEBI:38104] (2002) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organic heteropolycyclic compound [CHEBI:38166] (2613) organic heteropentacyclic compound [CHEBI:38164] (100) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) heteropolycyclic compound [CHEBI:33671] (2613) organic heteropolycyclic compound [CHEBI:38166] (2613) organic heteropentacyclic compound [CHEBI:38164] (100) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organic molecule [CHEBI:72695] (11399) organic cyclic compound [CHEBI:33832] (7633) organic heterocyclic compound [CHEBI:24532] (5243) organonitrogen heterocyclic compound [CHEBI:38101] (3202) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) oxacycle [CHEBI:38104] (2002) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) organic heteropolycyclic compound [CHEBI:38166] (2613) organic heteropentacyclic compound [CHEBI:38164] (100) pyranoindolizinoquinoline [CHEBI:48626] (2) topotecan [CHEBI:63632] (1) ChEBI Compound Accession Identifier: [CHEBI:63632] ChEBI Compound Description: A pyranoindolizinoquinoline used as an antineoplastic agent. It is a derivative of camptothecin and works by binding to the topoisomerase I-DNA complex and preventing religation of these 328 single strand breaks. ChEBI Compound Identification Number: 63632 ChEBI InChI Value: InChI=1S/C23H23N3O5/c1-4-23(30)16-8-18-20-12(9-26(18)21(28)15(16)11-31-22(23)29)7-13-14(10-25(2)3)19(27)6-5-17(13)24-20/h5-8,27,30H,4,9-11H2,1-3H3/t23-/m0/s1 ChEBI InChIKey Value: UCFGDBYHRUNTLO-QHCPKHFHSA-N ChEBI Compound Name: topotecan ChEBI SMILES Value: CC[C@@]1(O)C(=O)OCc2c1cc1-c3nc4ccc(O)c(CN(C)C)c4cc3Cn1c2=O ChEBI Substance ID: 135610141 ChEBI URL: ChEBI:63632 ChemSpider ID: 54705 Ontomatica Chemical Accession Key (OnChAKey): UCFGDBYHRUNTLO_QHCPKHFHSA_N_000_000000 PubChem Compound ID: 60700