Commercial Synthesis of a Pyrrolotriazine–Fluoroindole Intermediate to Brivanib Alaninate: Process Development Directed toward Impurity Control
作者:Jaan A. Pesti、Thomas LaPorte、John E. Thornton、Lori Spangler、Frederic Buono、Gerard Crispino、Frank Gibson、Paul Lobben、Christos G. Papaioannou
DOI:10.1021/op400242j
日期:2014.1.17
The development of a practical, commercial process for the preparation of 4-fluoro-2-methyl-indol-5-ol and its subsequent coupling with a pyrrolotriazine to form an advanced intermediate of the oncology therapy brivanib alaninate is described. A key aspect is the multikilogram-scale preparation of the fluoroindole intermediate from trifluoronitrobenzene and the subsequent coupling while achieving impurity
描述了一种制备4-氟-2-甲基-吲哚-5-醇及其随后与吡咯并三嗪偶联以形成肿瘤治疗布里伐尼丙氨酸盐的高级中间体的实用的商业方法的开发。一个关键方面是由三氟硝基苯制备氟吲哚中间体的多千克级规模,以及随后的偶联,同时实现了杂质的最小化。由于布里瓦尼丙氨酸盐是一种高剂量药物,因此合成具有低杂质水平的高质量API至关重要。