An Improved Convergent Approach for Synthesis of Erlotinib, a Tyrosine Kinase Inhibitor, via a Ring Closure Reaction of Phenyl Benzamidine Intermediate
作者:Davoud Asgari、Ayuob Aghanejad、Javid Shahbazi Mojarrad
DOI:10.5012/bkcs.2011.32.3.909
日期:2011.3.20
An improved convergent and economical method has been developed for the synthesis of erlotinib, a 4-anilinoquinazoline and an EGFR-tyrosine kinase inhibitor for treatment of non-small-cell lung cancer. The final two steps for the formation of this 4-anilinoquinazoline from suitable 2-aminobenzonitrile intermediate and 3-ethynylaniline were modified and were performed in a simple one-pot reaction. The
已经开发了一种改进的收敛和经济的方法,用于合成厄洛替尼、4-苯胺基喹唑啉和 EGFR-酪氨酸激酶抑制剂,用于治疗非小细胞肺癌。由合适的 2-氨基苄腈中间体和 3-乙炔基苯胺形成该 4-苯胺基喹唑啉的最后两个步骤进行了改进,并在简单的一锅反应中进行。研究并确定从合适的甲脒中间体和 3-乙炔基苯胺形成厄洛替尼的闭环机制通过形成苯基苯甲脒中间体进行,而不是涉及早先报道的 Dimroth 重排。首次分离并表征了新的苯甲脒中间体。