Chiral Resolution and Pharmacological Characterization of the Enantiomers of the Hsp90 Inhibitor 2-Amino-7-[4-fluoro-2-(3-pyridyl)phenyl]-4-methyl-7,8-dihydro-6<i>H</i>-quinazolin-5-one Oxime
作者:Raffaella Amici、Chiara Bigogno、Roberto Boggio、Andrea Colombo、Stephen M. Courtney、Roberto Dal Zuffo、Giulio Dondio、Fulvia Fusar、Stefania Gagliardi、Saverio Minucci、Marco Molteni、Christian A. G. N. Montalbetti、Annalisa Mortoni、Mario Varasi、Stefania Vultaggio、Ciro Mercurio
DOI:10.1002/cmdc.201400037
日期:2014.7
Heat‐shock protein 90 (Hsp90) is a molecular chaperone involved in the stabilization of key oncogenic signaling proteins, and therefore, inhibition of Hsp90 represents a new strategy in cancer therapy. 2‐Amino‐7‐[4‐fluoro‐2‐(3‐pyridyl)phenyl]‐4‐methyl‐7,8‐dihydro‐6H‐quinazolin‐5‐one oxime is a racemic Hsp90 inhibitor that targets the N‐terminal adenosine triphosphatase site. We developed a method to
热休克蛋白90(Hsp90)是参与关键致癌信号蛋白稳定化的分子伴侣,因此,抑制Hsp90代表了癌症治疗中的新策略。2-氨基-7- [4-氟-2-(3-吡啶基)苯基] -4-甲基-7,8-二氢-6- ħ -喹唑啉-5-酮肟是外消旋Hsp90抑制剂靶向N-末端腺苷三磷酸酶位点。我们开发了一种解决对映异构体的方法,并评估了其对Hsp90的抑制活性以及随之产生的抗肿瘤作用。(S)立体异构体在生化和细胞分析中作为有效的Hsp90抑制剂出现。另外,该对映异构体在小鼠中表现出高的口服生物利用度,并且在两种不同的人类癌症异种移植模型中表现出优异的抗肿瘤活性。