Sitagliptin (phosphate)|654671-78-0|(磷酸西他列汀; MK-0431 phosphate)-陌孚医药/Medlife

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Sitagliptin (phosphate) (Synonyms: 磷酸西他列汀; MK-0431 phosphate)

目录号: PC15764 纯度: ≥98%

CAS No. :654671-78-0

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中文名称	Sitagliptin (phosphate)
中文别名	磷酸西他列汀;4-氧代-4-(3-三氟甲基-5,6-二氢(1,2,4)三唑并[4,3-a]吡嗪-7(8H)-基)-1-(2,4,5-三氟苯基)丁-2-胺磷酸盐;磷酸西他列汀磷酸西他列汀一水化物;西他列汀磷酸盐;无水磷酸西他列汀;磷酸西格列汀一水合物;磷酸西他列汀（盐）;磷酸西他列汀无水物;磷酸西他列汀一水合物;西格列汀;一水化物
英文名称	Sitagliptin (phosphate)
英文别名	Sitagliptin phosphate;4-Oxo-4-(3-(trifluoromethyl)-5,6-dihydro(1,2,4)triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-amine phosphate;7-[(3R)-3-Amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl]-5,6,7,8-tetrahydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-α]pyrazine-phosphate;(3R)-3-aMino-1-[3-(trifluoroMethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]-4-(2,4,5-trifluorophenyl)butan-1-one;Sitagliptin (phosphate);Sitagliptin Phosphat;MK0431 phosphate;MK-0431 phosphate;Sitagliptin;Januvia;MK 0431;MK0431;494P4635I6;(2R)-4-Oxo-4-(3-(trifluoromethyl)-5,6-dihydro(1,2,4)triazolo(4,3-a)pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-amine phosphate salt;(R)-3-AMINO-1-(3-(TRIFLUOROMETHYL)-5,6-DIHYDRO-[1,2,4]TRIAZOLO[4,3-A]PYRAZIN-7(8H)-YL)-4-(2,4,5-TRIFLUOROPHENYL)BUTAN-1-ONE PHOSPHATE;(3R)-3-amino-1-[3-(trifluoromethyl)-6,8-dihydro-5H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]-4-(2,4,5-tr
Cas No.	654671-78-0
分子式	C₁₆H₁₈F₆N₅O₅P
分子量	505.31
包装储存	4°C, sealed storage, away from moisture and light *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

生物活性

Sitagliptin phosphate (MK-0431 phosphate) is a potent inhibitor of DPP4 with an IC₅₀ of 19 nM in Caco-2 cell extracts.

性状

Solid

IC50 & Target[1][2]

DPP-4

体外研究(In Vitro)

Sitagliptin phosphate exhibits a potent inhibitory effect on DPP-4 with IC₅₀ of 19 nM from Caco-2 cell extracts. Sitagliptin reduces 体外研究 migration of isolated splenic CD4 T-cells through a pathway involving cAMP/PKA/Rac1 activation. A recent study demonstrates that sitagliptin exerts a novel, direct action in order to stimulate GLP-1 secretion by the intestinal L cell through a DPP-4-independent, protein kinase A- and MEK-ERK1/2-dependent pathway. It therefore reduces the effect of autoimmunity on graft survival.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究(In Vivo)

In vivo, the ED₅₀ value of sitagliptin phosphate for inhibition of plasma DPP-4 activity is calculated to be 2.3 mg/kg 7 hour postdose and 30 mg/kg 24 hour postdose in freely fed Han-Wistar rats. The streptozotocin-induced type 1 diabetes mouse model exhibits elevated DPP-4 levels in the plasma that can be substantially inhibited in mice on an Sitagliptin phosphate diet. This is achieved by a positive effect on the regulation of hyperglycemia, potentially through prolongation of islet graft survival. The plasma clearance and volume of distribution of Sitagliptin phosphate are higher in rats (40-48 mL/min/kg, 7-9 L/kg) than in dogs (9 mL/min/kg, 3 L/kg); and its half-life is shorter in rats,2 hours compared with 4 hours in dogs.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

运输条件

Room temperature or refrigerated transportation.

储存方式

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

ClinicalTrial

参考文献

[1]. Thomas, L., et al. (R)-8-(3-amino-piperidin-1-yl)-7-but-2-ynyl-3-methyl-1-(4-methyl-quinazolin-2-ylm ethyl)-3,7-dihydro-purine-2,6-dione (BI 1356), a novel xanthine-based dipeptidyl peptidase 4 inhibitor, has a superior potency and longer duration of acti [Information]

[2]. Kim, S.J., et al., Dipeptidyl peptidase IV inhibition with MK0431 improves islet graft survival in diabetic NOD mice partially via T-cell modulation. Diabetes, 2009. 58(3): p. 641-51. [Information]

[3]. Sangle, G.V., et al., Novel biological action of the dipeptidylpeptidase-IV inhibitor, sitagliptin, as a glucagon-like peptide-1 secretagogue. Endocrinology, 2012. 153(2): p. 564-73. [Information]

[4]. Kim, S.J., et al., Inhibition of dipeptidyl peptidase IV with sitagliptin (MK0431) prolongs islet graft survival in streptozotocin-induced diabetic mice. Diabetes, 2008. 57(5): p. 1331-9. [Information]

[5]. Beconi, M.G., et al. Disposition of the dipeptidyl peptidase 4 inhibitor sitagliptin in rats and dogs. Drug Metab Dispos, 2007. 35(4): p. 525-32. [Information]

溶解度数据

体外研究:

DMSO : 100 mg/mL (197.90 mM; Need ultrasonic)

H₂O : 50 mg/mL (98.95 mM; Need ultrasonic)

配制储备溶液

浓度溶剂体积质量	1 mg	5 mg	10 mg

1 mM	1.9790 mL	9.8949 mL	19.7898 mL
5 mM	0.3958 mL	1.9790 mL	3.9580 mL
10 mM	0.1979 mL	0.9895 mL	1.9790 mL

产品不同，其溶解度不同。建议根据产品选择合适的溶剂配制储备溶液；配成溶液后，建议分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C 储存时，建议在 6 个月内使用，-20°C 储存时，建议在 1 个月内使用。

体内研究:

建议根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都建议先按照 体外研究 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用；以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

1.

建议依照次序添加每种溶剂： PBS
Solubility: 50 mg/mL (98.95 mM); Clear solution; Need ultrasonic
2.

建议依照次序添加每种溶剂： 10% DMSO 40% PEG300 5% Tween-80 45% saline
Solubility: ≥ 2.5 mg/mL (4.95 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (4.95 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。
将 0.9 g 氯化钠，完全溶解于 100 mL ddH?O 中，得到澄清透明的生理盐水溶液
3.

建议依照次序添加每种溶剂： 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (4.95 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (4.95 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。
将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
4.

建议依照次序添加每种溶剂： 10% DMSO 90% corn oil
Solubility: ≥ 2.5 mg/mL (4.95 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (4.95 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

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Data Sheet

1：一般建议：溶解度为Medlife测试数据，可能与文献描述存在差异。这是由于生产工艺和批次不同产生的正常现象。为了使其更好的溶解，请用37℃加热试管并在超声波水浴中震动片刻。不同批次产品溶解度各有差异，仅做参考，具体以实验方案为准。

2：储存条件：粉末-20°C一般情况可以保存3年，溶于溶剂-80°C一般情况可以保存1年。不同产品及不同批次产品可能存在差异，请细致阅读产品信息，并辅助参考相关文献描述。

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