TAS6417 (CLN-081) is a highly effective, orally active and pan-mutation-selective EGFR tyrosine kinase inhibitor with a unique scaffold fitting into the ATP-binding site of the EGFR hinge region, with IC₅₀ values ranging from 1.1-8.0 nM^[1][2].

TAS6417 inhibits EGFR phosphorylation and downstream molecules in NSCLC cell lines expressing EGFR exon 20 insertions, resulting in caspase activation^[1].
TAS6417 is a robust inhibitor against the most common EGFR mutations (exon 19 deletions and L858R) and the most potent against cells harboring EGFR-T790M (1st/2nd generation TKI resistance mutation)^[2].
TAS6417 covalently modified the cysteine residue at position 797 of recombinant EGFR harboring an in-frame insertion mutation in the exon 20 region^[1].
TAS6417 inhibits EGFR signal transduction, leading to cell growth inhibition and apoptosis induction in NSCLC cells driven by EGFR exon 20 insertion mutations^[1].
TAS6417 (0-10 μM) inhibits cell proliferation and EGFR signaling in NSCLC cell lines harboring EGFR common mutations in the presence or absence of T790M^[2].

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.

TAS6417 (10-200 mg/kg) causes persistent tumor regression in vivo in EGFR exon 20 insertion-driven tumor models. TAS6417 inhibits mutant EGFR in tumors but not WT EGFR in skin tissues^[1].
TAS6417 had no effect on EGFR-independent proliferation in NCI-H23 or NCI-H460 cells^[1].
TAS6417 administered at 20 mg/kg, which achieves complete suppression of tumor growth, induces a significant decrease in pEGFR, leading to reduction of pAKT and pERK at 1 h. The inhibitory effect is still noted at 6 h, and phosphorylation of EGFR, ATK, and ERK recovered by 24 h^[1].
TAS6417 (100 and 200 mg/kg/day) prolongs survival of animals bearing lung cancer^[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.

396.44

C₂₃H₂₀N₆O

1661854-97-2

Room temperature in continental US; may vary elsewhere.

4°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

DMSO : 22.73 mg/mL (57.34 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 (protect from light, stored under nitrogen)。-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。

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% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.08 mg/mL (5.25 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (5.25 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 20.8 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 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% DMSO    90% (20% SBE-β-CD in saline)

  Solubility: ≥ 2.08 mg/mL (5.25 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (5.25 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 20.8 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
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.08 mg/mL (5.25 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (5.25 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 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Hasako S, et al. TAS6417, A Novel EGFR Inhibitor Targeting Exon 20 Insertion Mutations. Mol Cancer Ther. 2018 Aug;17(8):1648-1658.

  [2]. Hibiki Udagawa, et al. TAS6417/CLN-081 Is a Pan-Mutation-Selective EGFR Tyrosine Kinase Inhibitor with a Broad Spectrum of Preclinical Activity against Clinically Relevant EGFR Mutations. Mol Cancer Res. 2019 Nov;17(11):2233-2243.