hydrate tert-butyl 3-[(2S,5S,8S)-14-methoxy-2-(2-methylpropyl)-4,7-dioxo-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate

• ChemBase ID: 154293
• Molecular Formular: C26H37N3O6
• Molecular Mass: 487.58848
• Monoisotopic Mass: 487.26823592
• SMILES: CC(C)C[C@H]1c2c(c3ccc(cc3[nH]2)OC)C[C@@H]2N1C(=O)[C@@H](NC2=O)CCC(=O)OC(C)(C)C.O
• Canonical SMILES: COc1ccc2c(c1)[nH]c1c2C[C@@H]2N([C@H]1CC(C)C)C(=O)[C@@H](NC2=O)CCC(=O)OC(C)(C)C.O
• InChI: InChI=1S/C26H35N3O5.H2O/c1-14(2)11-20-23-17(16-8-7-15(33-6)12-19(16)27-23)13-21-24(31)28-18(25(32)29(20)21)9-10-22(30)34-26(3,4)5;/h7-8,12,14,18,20-21,27H,9-11,13H2,1-6H3,(H,28,31);1H2/t18-,20-,21-;/m0./s1
• InChIKey: ZXXZDXPNJJZRDC-PSLBYKFTSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: hydrate tert-butyl 3-[(2S,5S,8S)-14-methoxy-2-(2-methylpropyl)-4,7-dioxo-3,6,17-triazatetracyclo[8.7.0.0^3,^8.0^1^1,^1^6]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate
• IUPAC Traditional name: hydrate tert-butyl 3-[(2S,5S,8S)-14-methoxy-2-(2-methylpropyl)-4,7-dioxo-3,6,17-triazatetracyclo[8.7.0.0^3,^8.0^1^1,^1^6]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate
• Synonyms: (3S,6S,12aS)-1,2,3,4,6,7,12,12a-Octahydro-9-methoxy-6-( 2-methylpropyl)-1,4-dioxopyrazino[1′,2′:1,6]pyrido[3,4- b]indole-3-propanoic acid 1,1-dimethylethyl ester hydrate; Ko143 hydrate

Database IDs

• CAS Number: 461054-93-3(anhydrous)
• MDL Number: MFCD19053160
• PubChem SID: 162248432
• PubChem CID: 71311836

CALCULATED PROPERTIES

• Acid pKa: 11.2008095
• H Acceptors: 4
• H Donor: 2
• LogD (pH = 5.5): 2.936671
• LogD (pH = 7.4): 2.936611
• Log P: 2.9366717
• Molar Refractivity: 127.5498 cm^3
• Polarizability: 51.07516 Å^3
• Polar Surface Area: 100.73 Å^2
• Rotatable Bonds: 8
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: DMSO: >10 mg/mL
• Apperance: white to off-white powder

Safety Information

• European Hazard Symbols: Irritant (Xi)
• German water hazard class: 3
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• GHS Pictograms: GHS07
• GHS Signal Word: Warning
• GHS Hazard statements: H315-H319-H335
• GHS Precautionary statements: P261-P305 + P351 + P338
• Storage Temperature: room temp

Product Information

• Purity: ≥98% (HPLC)
• Empirical Formula (Hill Notation): C26H35N3O5 · xH2O

DETAILS

Sigma Aldrich - K2144

Biochem/physiol Actions
Ko143 has been used as a positive control inhibitor on functions of BCRP in MCF7 and BCRP over-expressing MCF7/MX100 cell lines using a BCRP prototypical substrate mitoxantrone. The ABCG2 transporter breast cancer resistance protein (BCRP) plays an important role in disposition of many drugs and environmental toxins. Ko143 displays > 200-fold selectivity over P-gp and MRP-1 transporters. It increases intracellular drug accumulation and reverse BCRP-mediated multidrug resistance. It blocked topotecan and ABZSO transport in a concentration-dependent manner. Ko143 is reported to be a more specific inhibitor of BCRP than other known inhibitors of BCRP such as fumitremorgin C and GF120918.
Ko143 has been used as a positive control inhibitor on functions of breast cancer resistance protein (BCRP) using a BCRP prototypical substrate mitoxantrone. BCRP, an ABCG2 transporter, plays an important role in disposition of many drugs and environmental toxins. Ko143 displays > 200-fold selectivity over P-gp and MRP-1 transporters and thus is more specific than other known BCRP inhibitors such as fumitremorgin C and GF120918. It increases intracellular drug accumulation and reverses BCRP-mediated multidrug resistance. It blocks topotecan and ABZSO transport in a concentration-dependent manner.