A novel and unexpected one pot synthesis of pyrrolo[1,2-a]quinolines
作者:Geraud N. Sansom、Jessica Semken、Michael J. Kelso、Christopher Richardson
DOI:10.1016/j.tetlet.2022.153794
日期:2022.5
A new low temperature route to pyrrolo[1,2-a]quinolines bearing ester groups in the 5-position is reported. The reaction mechanism was found to depend on the reaction temperature. At low temperatures it is proposed the reaction proceeds though an addition-intramolecular SNAr-elimination pathway. This method should find wider use as it avoids high boiling point solvents and affords compatibility with
报道了一种在 5 位带有酯基的吡咯并[1,2- a ]喹啉的新低温路线。发现反应机理取决于反应温度。在低温下,建议反应通过加成-分子内 S N Ar-消除途径进行。这种方法应该得到更广泛的应用,因为它避免了高沸点溶剂并提供与热敏基材的相容性。
Prototyping kinase inhibitor-cytotoxin anticancer mutual prodrugs activated by tumour hypoxia: A chemical proof of concept study
作者:Geraud N. Sansom、Nicholas S. Kirk、Christopher P. Guise、Robert F. Anderson、Jeff B. Smaill、Adam V. Patterson、Michael J. Kelso
DOI:10.1016/j.bmcl.2019.03.015
日期:2019.5
Amide- and ester-linked kinase inhibitor-cytotoxin conjugates were rationally designed and synthesised as prototype hypoxia-activated anticancer mutual prodrugs. Chemical reduction of an aryl nitro trigger moiety was shown to initiate a spontaneous cyclisation/fragmentation reaction that simultaneously released the kinase inhibitor semaxanib (SU5416) and the amine- or alcohol-linked cytotoxin from the prodrugs. Preliminary cell testing and reduction potential measurements support optimisation of the compounds towards tumour-selective mutual prodrugs.