Rebeccamycin

Rebeccamycin

Clinical data
ATC code	none
Identifiers
IUPAC name 1,11-dichloro-12-(4-O-methyl-β-D-glucopyranosyl)-12,13-dihydro-5H-indolo[2,3-a]pyrrolo[3,4-c]carbazole-5,7(6H)-dione
Synonyms	7,10-dichloro-8-(3,4-dihydroxy-6-(hydroxymethyl)-5-methoxytetrahydro-2H-pyran-2-yl)-8,9-dihydro-1H-indolo[2,3-a]pyrrolo[3,4-c]carbazole-1,3(2H)-dione
CAS Number	93908-02-2 N
PubChem CID	73110
ChemSpider	65891 Y
ChEBI	CHEBI:135511 Y
ChEMBL	CHEMBL370100 Y
Chemical and physical data
Formula	C27H21Cl2N3O7
Molar mass	570.38
3D model (Jmol)	Interactive image
SMILES O=C1c5c(C(=O)N1)c3c2cccc(Cl)c2nc3c6n(c4c(Cl)cccc4c56)[C@@H]7O[C@@H]([C@@H](OC)[C@H](O)[C@H]7O)CO
InChI InChI=1S/C27H21Cl2N3O7/c1-38-24-13(8-33)39-27(23(35)22(24)34)32-20-10(5-3-7-12(20)29)15-17-16(25(36)31-26(17)37)14-9-4-2-6-11(28)18(9)30-19(14)21(15)32/h2-7,13,22-24,27,30,33-35H,8H2,1H3,(H,31,36,37)/t13-,22-,23-,24-,27-/m1/s1 Y Key:QEHOIJJIZXRMAN-QZQSLCQPSA-N Y
NY (what is this?)

Rebeccamycin (NSC 655649) is a weak topoisomerase I inhibitor isolated from Streptomyces sp. It is structurally similar to staurosporine, but does not show any inhibitory activity against protein kinases. It shows significant antitumor properties in vitro (IC₅₀=480nM against mouse B16 melanoma cells and IC₅₀=500nM against P388 leukemia cells). It is an antineoplastic antibiotic and an intercalating agent.

Becatecarin (BMS-181176) is a synthetic analog of rebeccamycin.

Rebeccamycin and becatecarin have been tested in phase II clinical trials for the treatment of lung cancer, liver cancer, breast cancer, lymphoma, retinoblastoma, kidney cancer, and ovarian cancer.