The present invention relates to an improved and novel process for the preparation of high purity crystalline base of Lapatinib of formula-(1) having chemical name N-3-chloro-4-[(3-fluorobenzyloxy]phenyl}-6-[5-([2-(methanesulfonyl)ethyl]amino}methyl]-2-furyl]-4-quin-azolinamine and its pharmaceutically acceptable salts. The present invention further relates to intermediates according to formula (8) and formula (9) used in this process
本发明涉及一种改进和新颖的制备
化学名称为N-3-
氯-4-[(3-
氟苯氧基]苯基}-6-[5-([2-(甲磺酰基)乙基]
氨基}甲基]-2-
呋喃]-4-
喹唑啉胺的高纯度结晶
拉帕替尼的方法,以及其药用可接受的盐。本发明还涉及用于该过程的按照式(8)和式(9)的中间体