Vps34-IN-2 is a novel, potent and selective inhibitor of Vps34 with IC₅₀s of 2 and 82 nM on the Vps34 enzymatic assay and the GFP-FYVE cellular assay, respectively^[1]. Vps34-IN-2 shows antiviral activity against SARS-CoV-2 (IC₅₀ of 3.1 μM), HCoV-229E (IC₅₀ of 0.7 μM) and HCoV-OC43^[2].

Vps34-IN-2 (Compound 31) displays IC₅₀s of 2 and 82 nM on the Vps34 enzymatic assay and the GFP-FYVE cellular assay, respectively. Vps34-IN-2 exhibits selectivity against mTOR (IC₅₀>10 μM) and class I PI3Ks (IC₅₀ values of 2.7, 4.5, 2.5, and >10 μM on PI3K α, β, δ, γ isoforms, respectively)^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

After administration by the intravenous (iv) route, Vps34-IN-2 (Compound 31) concentrations are quantifiable up to 6, 8, and 24 h (last sampling time) depending on animals. After oral administration (po), Vps34-IN-2 is rapidly absorbed with maximal plasma concentrations observed at 0.5 h and a bioavailability of 85%. Slight rebounds of concentrations are observed at 4 and 8 h after oral dosing with no obvious explanation. After iv injection of Vps34-IN-2 at 3 mg/kg, plasma clearance is found moderate (i.e., 2.3 L/h/kg), corresponding to 44% of hepatic blood flow in this species, volume of distribution at steady state is moderate, and terminal elimination half-life is short^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

402.41

C₁₈H₂₅F₃N₄O₃

1523404-29-6

Room temperature in continental US; may vary elsewhere.

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

In Vitro: 

Ethanol : 50 mg/mL (124.25 mM; Need ultrasonic)

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，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。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 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.

  请依序添加每种溶剂： 10% EtOH    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (6.21 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.21 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 EtOH 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 ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

  请依序添加每种溶剂： 10% EtOH    90% (20% SBE-β-CD in saline)

  Solubility: ≥ 2.5 mg/mL (6.21 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.21 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 EtOH 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
• 3.

  请依序添加每种溶剂： 10% EtOH    90% corn oil

  Solubility: ≥ 2.5 mg/mL (6.21 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.21 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 EtOH 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Pasquier B, et al. Discovery of (2S)-8-[(3R)-3-methylmorpholin-4-yl]-1-(3-methyl-2-oxobutyl)-2-(trifluoromethyl)-3,4-dihydro-2H-pyrimido[1,2-a]pyrimidin-6-one: a novel potent and selective inhibitor of Vps34 for the treatment of solid tumors. J Med Chem. 2015 Jan 8;58(1):376-400.

  [2]. Jim Baggen, et al. Genome-wide CRISPR screening identifies TMEM106B as a proviral host factor for SARS-CoV-2. Nat Genet. 2021 Mar 8.

Cells are cultured in RPMI-1640 medium with 10% fetal bovine serum. Cells are lysed by sonication in a detergent containing lysis buffer and cleared by centrifugation, and the resulting supernatant is collected for compound treatment. Final protein concentration of lysates is 4 mg/mL. An amount of 5 μL of Vps34-IN-2 (Compound 31) is added from 100× stock solutions in DMSO to 445 μL of lysate in duplicate. An amount of 5 μL of DMSO is added to 445 μL of lysate in quadruplicate for controls. After 15 min incubation, 5 μL of a 100× aqueous solution of the ATP probe I is added to each sample (final concentration of ATP probe I is 0.5 μM). After 5 min, 50 μL of a 10× aqueous solution of the ATP probe II is added to each sample (final concentration of ATP probe II is 20 μM). All samples are then incubated for an additional 10 min^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

For PK/PD studies, 3×10⁶ H1299-GFP-FYVE tumor cells with 50% Matrigel are subcutaneously injected on the dorsal side of SCID mice, one tumor per mouse. When xenografted tumors reach a range of ~200 to 400 mm³, mice are treated with vehicle (98% PEG200/2% PS80) or a single dose of Vps34-IN-2 (compound 31) at 100 and 50 mg/kg via oral gavage. Three mice treated with vehicle alone and three mice treated with Vps34-IN-2 are sacrificed at each time point; tumor tissues are harvested for immunohistochemistry (IHC) analysis and plasma samples are collected to determine the concentration of Vps34-IN-2^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Pasquier B, et al. Discovery of (2S)-8-[(3R)-3-methylmorpholin-4-yl]-1-(3-methyl-2-oxobutyl)-2-(trifluoromethyl)-3,4-dihydro-2H-pyrimido[1,2-a]pyrimidin-6-one: a novel potent and selective inhibitor of Vps34 for the treatment of solid tumors. J Med Chem. 2015 Jan 8;58(1):376-400.

  [2]. Jim Baggen, et al. Genome-wide CRISPR screening identifies TMEM106B as a proviral host factor for SARS-CoV-2. Nat Genet. 2021 Mar 8.