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SIAIS178 - CAS 2376047-73-1

Inquiry

SIAIS178 is a potent and selective BCR-ABL degrader based on PROTAC technology with an IC50 of 24 nM. SIAIS178 causes effective degradation of BCR-ABL protein by recruiting Von Hippel-Lindau (VHL) E3 ubiquitin ligase. It has anticancer activity.

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Molecular Formula

C50H62ClN11O6S2

Molecular Weight

1012.68

SIAIS178

- Specification
  - Purity
    
    ≥99%
    
    Solubility
    
    Soluble in DMSO (300 mg/mL, 296.24 mM, Need ultrasonic)
    
    Appearance
    
    Solid Powder
    
    Storage
    
    Store at 2-8°C for short term (days to weeks) or -20°C for long term (months to years)
    
    IUPAC Name
    
    N-(2-chloro-6-methylphenyl)-2-[[6-[4-[8-[[(2S)-1-[(2S,4R)-4-hydroxy-2-[[4-(4-methyl-1,3-thiazol-5-yl)phenyl]methylcarbamoyl]pyrrolidin-1-yl]-3,3-dimethyl-1-oxobutan-2-yl]amino]-8-oxooctanoyl]piperazin-1-yl]-2-methylpyrimidin-4-yl]amino]-1,3-thiazole-5-carboxamide
    
    Synonyms
    
    SIAIS 178; SIAIS-178; N-(2-Chloro-6-methylphenyl)-2-((6-(4-(8-(((S)-1-((2S,4R)-4-hydroxy-2-((4-(4-methyl-thiazol-5-yl)benzyl)carbamoyl)pyrrolidin-1-yl)-3,3-dimethyl-1-oxobutan-2-yl)amino)-8-oxooctanoyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)amino)thiazole-5-carboxamide; N-(8-{4-[6-({5-[(2-Chloro-6-methylphenyl)carbamoyl]-1,3-thiazol-2-yl}amino)-2-methyl-4-pyrimidinyl]-1-piperazinyl}-8-oxooctanoyl)-3-methyl-L-valyl-(4R)-4-hydroxy-N-[4-(4-methyl-1,3-thiazol-5-yl)benzyl]-L-prolinamide
- Properties
  - Density
    
    1.335±0.06 g/cm3
    
    InChI Key
    
    YGQREOJIRFCRKQ-ZIBKGDFVSA-N
    
    InChI
    
    InChI=1S/C50H62ClN11O6S2/c1-30-12-11-13-36(51)43(30)59-47(67)38-27-53-49(70-38)57-39-25-40(56-32(3)55-39)60-20-22-61(23-21-60)42(65)15-10-8-7-9-14-41(64)58-45(50(4,5)6)48(68)62-28-35(63)24-37(62)46(66)52-26-33-16-18-34(19-17-33)44-31(2)54-29-69-44/h11-13,16-19,25,27,29,35,37,45,63H,7-10,14-15,20-24,26,28H2,1-6H3,(H,52,66)(H,58,64)(H,59,67)(H,53,55,56,57)/t35-,37+,45-/m1/s1
    
    Canonical SMILES
    
    CC1=C(C(=CC=C1)Cl)NC(=O)C2=CN=C(S2)NC3=CC(=NC(=N3)C)N4CCN(CC4)C(=O)CCCCCCC(=O)NC(C(=O)N5CC(CC5C(=O)NCC6=CC=C(C=C6)C7=C(N=CS7)C)O)C(C)(C)C
- Reference Reading
  - 1. Discovery of SIAIS178 as an Effective BCR-ABL Degrader by Recruiting Von Hippel-Lindau (VHL) E3 Ubiquitin Ligase
    
    Yubao Shao, Quanju Zhao, Chaowei Ren, Renhong Sun, Xinyu Ding, Bei Yang, Ying Kong, Xianfang Zhang, Youwei Xu, Biao Jiang, Xiaobao Yang, Jinju Chen, Ning Sun, Qianqian Yin, Linyi Liu J Med Chem . 2019 Oct 24;62(20):9281-9298. doi: 10.1021/acs.jmedchem.9b01264.
    
    The oncogenic fusion protein BCR-ABL is the driving force of leukemogenesis in chronic myeloid leukemia (CML). Despite great progress for CML treatment through application of tyrosine kinase inhibitors (TKIs) against BCR-ABL, long-term drug administration and clinical resistance continue to be an issue. Herein, we described the design, synthesis, and evaluation of novel proteolysis-targeting chimeric (PROTAC) small molecules targeting BCR-ABL which connect dasatinib and VHL E3 ubiquitin ligase ligand by extensive optimization of linkers. Our efforts have yielded SIAIS178 (19), which induces proper interaction between BCR-ABL and VHL ligase leading to effective degradation of BCR-ABL protein, achieves significant growth inhibition of BCR-ABL+leukemic cells in vitro, and induces substantial tumor regression against K562 xenograft tumors in vivo. In addition, SIAIS178 also degrades several clinically relevant resistance-conferring mutations. Our data indicate that SIAIS178 as efficacious BCR-ABL degrader warrants extensive further investigation for the treatment of BCR-ABL+leukemia.

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