Q-203 Ditosylate - 半岛电竞官方网址

Molecular Weight (MW)	901.41
Formula	C43H44ClF3N4O8S2
CAS No.	1566517-83-6 (Ditosylate)
Storage	-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility(In vitro)	DMSO:>10 mM
Water: N/A
Ethanol: N/A
Solubility(In vivo)	O=C(C1=C(CC)N=C2C=CC(Cl)=CN21)NCC3=CC=C(N4CCC(C5=CC=C(OC(F)(F)F)C=C5)CC4)C=C3. O=S(C6=CC=C(C)C=C6)(O)=O.O=S(C7=CC=C(C)C=C7)(O)=O
Synonyms	Q-203 ditosylate; Q 203 ditosylate; Q203 ditosylate

Molecular Weight (MW)

901.41

Formula

C43H44ClF3N4O8S2

CAS No.

1566517-83-6 (Ditosylate)

Storage

-20℃ for 3 years in powder form

-80℃ for 2 years in solvent

Solubility(In vitro)

DMSO:>10 mM

Water: N/A

Ethanol: N/A

Solubility(In vivo)

O=C(C1=C(CC)N=C2C=CC(Cl)=CN21)NCC3=CC=C(N4CCC(C5=CC=C(OC(F)(F)F)C=C5)CC4)C=C3. O=S(C6=CC=C(C)C=C6)(O)=O.O=S(C7=CC=C(C)C=C7)(O)=O

Synonyms

Q-203 ditosylate; Q 203 ditosylate; Q203 ditosylate

In Vitro	In vitroactivity: Q203 is an imidazopyridine amide (IAP) compound that block Mycobacterium tuberculosis growth by targeting the respiratory cytochrome bc1 complex. It has the potential for the treatment of tuberculosis. Q203 inhibited the growth of MDR and XDR M. tuberculosis clinical isolates in culture broth medium in the low nanomolar range and was efficacious in a mouse model of tuberculosis at a dose less than 1 mg per kg body weight, which highlights the potency of Q203. Q203 is active against the reference strain Mycobacterium tuberculosis H37Rv with MIC50s of 2.7 nM in culture broth medium and 0.28 nM inside macrophages. In addition, Q203 displays pharmacokinetic and safety profiles compatible with once-daily dosing. Together, these data indicate that Q203 is a promising new clinical candidate for the treatment of tuberculosis. Kinase Assay: Q203 is active against the reference strain Mycobacterium tuberculosis H37Rv with MIC50s of 2.7 nM in culture broth medium and 0.28 nM inside macrophages. Cell Assay:
In Vivo	Q203 displays pharmacokinetic and safety profiles compatible with once-daily dosing. Q203 has a bioavailability of 90% and a terminal half-life of 23.4 h. The volume of distribution is moderate (5.27 l per kg body weight), and the systemic clearance is low (4.03 mL/min per kg). After 4 weeks of treatment, reductions of 90%, 99% and 99.9% in M. tuberculosis H37Rv bacterial load is observed in the groups treated with Q203 at 0.4, 2 and 10 mg per kg body weight, respectively
Animal model	Sprague Dawley rats
Formulation & Dosage	Rats: Sprague Dawley rats are used for pharmacokinetic studies. Compounds (Q203) are given at a dose of 2 mg per kg body weight intravenously or 10 mg per kg body weight orally. The compounds (Q203) are formulated in 20% TPGS (d-α tocopheryl polyethylene glycol 1000 succinate) for repeated-dose studies and in 40% PEG400, pH4 for single-dose studies. Blood samples are taken through the caudal vena cava using 1-mL syringes before perfusion. Samples are collected from three mice or rats at 0.5, 1, 2, 6, 12, 24 and 48 h post-dose. Blood samples are centrifuged at 3,200g for 10 min at 4 °C. Following centrifugation, plasma is collected and frozen until further analysis. Compound concentrations are determined by LC-MS; Mice: Efficacy of Q203 in a mouse model of established tuberculosis is studied. Bacterial loads are enumerated in the lung of infected mice after 14 d and 28 d of treatment. Q203 is used at 0.4, 2 and 10 mg per kg body weight. Bedaquiline and isoniazid (INH) are used as positive controls at 6.5 and 15 mg per kg body weight, respectively. Five mice per group and per time point are used.
References	Nat Med. 2013 Sep;19(9):1157-60.

In Vitro

In vitroactivity: Q203 is an imidazopyridine amide (IAP) compound that block Mycobacterium tuberculosis growth by targeting the respiratory cytochrome bc1 complex. It has the potential for the treatment of tuberculosis. Q203 inhibited the growth of MDR and XDR M. tuberculosis clinical isolates in culture broth medium in the low nanomolar range and was efficacious in a mouse model of tuberculosis at a dose less than 1 mg per kg body weight, which highlights the potency of Q203. Q203 is active against the reference strain Mycobacterium tuberculosis H37Rv with MIC50s of 2.7 nM in culture broth medium and 0.28 nM inside macrophages. In addition, Q203 displays pharmacokinetic and safety profiles compatible with once-daily dosing. Together, these data indicate that Q203 is a promising new clinical candidate for the treatment of tuberculosis.

Kinase Assay: Q203 is active against the reference strain Mycobacterium tuberculosis H37Rv with MIC50s of 2.7 nM in culture broth medium and 0.28 nM inside macrophages.

Cell Assay:

In Vivo

Q203 displays pharmacokinetic and safety profiles compatible with once-daily dosing. Q203 has a bioavailability of 90% and a terminal half-life of 23.4 h. The volume of distribution is moderate (5.27 l per kg body weight), and the systemic clearance is low (4.03 mL/min per kg). After 4 weeks of treatment, reductions of 90%, 99% and 99.9% in M. tuberculosis H37Rv bacterial load is observed in the groups treated with Q203 at 0.4, 2 and 10 mg per kg body weight, respectively

Animal model

Sprague Dawley rats

Formulation & Dosage

Rats: Sprague Dawley rats are used for pharmacokinetic studies. Compounds (Q203) are given at a dose of 2 mg per kg body weight intravenously or 10 mg per kg body weight orally. The compounds (Q203) are formulated in 20% TPGS (d-α tocopheryl polyethylene glycol 1000 succinate) for repeated-dose studies and in 40% PEG400, pH4 for single-dose studies. Blood samples are taken through the caudal vena cava using 1-mL syringes before perfusion. Samples are collected from three mice or rats at 0.5, 1, 2, 6, 12, 24 and 48 h post-dose. Blood samples are centrifuged at 3,200g for 10 min at 4 °C. Following centrifugation, plasma is collected and frozen until further analysis. Compound concentrations are determined by LC-MS;

Mice: Efficacy of Q203 in a mouse model of established tuberculosis is studied. Bacterial loads are enumerated in the lung of infected mice after 14 d and 28 d of treatment. Q203 is used at 0.4, 2 and 10 mg per kg body weight. Bedaquiline and isoniazid (INH) are used as positive controls at 6.5 and 15 mg per kg body weight, respectively. Five mice per group and per time point are used.

References

Nat Med. 2013 Sep;19(9):1157-60.

CAS NO:	1566517-83-6
规格:	≥98%

包装	价格(元)
10mg	电议
25mg	电议
50mg	电议
100mg	电议
250mg	电议
500mg	电议