Amino DSA analogues as payloads for antibody-drug conjugates with multiple sites for conjugation. Initial studies and solid phase synthesis

TETRAHEDRON LETTERS

卷:72

Article

Cominetti, Marco M. M. D.¹  Goddard, Zoe R.¹  Howman, Chloe E.^1,2  O'Connell, Maria A.¹  Searcey, Mark¹ 

[1] Univ East Anglia, Sch Pharm, Norwich Res Pk, Norwich NR4 7TJ, Norfolk, England

[2] Univ York, Dept Chem, York YO10 5DD, N Yorkshire, England

关键词: Natural product;    Duocarmycin;    Antibody drug conjugate;    Solid phase;    Yatakemycin;   

DOI  :  10.1016/j.tetlet.2021.153058

来源: Elsevier

【 摘 要 】

Duocarmycins are highly potent and promising anticancer payloads for ADC applications. They tolerate a range of chemical modifications which allow the chemist to modulate both their biophysical and pharmacological properties. The possibility to synthesize these payloads on resin and orthogonally add linkers while immobilized on the solid phase, would allow a combinatorial design of payload analogues with linkers, potentially aided by automation. Working towards this goal, we report a concise and high yielding synthesis of an alkylating unit suitable for solid phase synthesis (10, 9 steps, 34% yield) and demonstrate its applicability to the synthesis of duocarmycin SA analogues (19, 20). An intermediate for traditional solution phase synthesis (8) is also described in 7 steps and 44% yield. A side reaction with potential application to the stereoselective synthesis of these derivatives has also been described. (C) 2021 Elsevier Ltd. All rights reserved.

【 授权许可】

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