PROCESS FOR THE PREPARATION OF ERLOTINIB OR ITS PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
申请人:Murugesan Balaguru
公开号:US20120101272A1
公开(公告)日:2012-04-26
The present invention relates to a process for preparation of erlotinib of Formula I or its pharmaceutically acceptable salt thereof. The present invention also relates to process for the preparation of erlotinib trifluoroacetate. The present invention also relates to a nove-ICrystalline form of erlotinib trifluoroacetate designated as Form E and process for its preparation. The present invention further relates to process for the preparation of erlotinib hydrochloride from erlotinib trifluoroacetate.
本发明涉及一种制备公式I的厄洛替尼或其药学上可接受的盐的工艺。本发明还涉及一种制备厄洛替尼三氟乙酸盐的工艺。本发明还涉及一种新的厄洛替尼三氟乙酸盐的晶体形式,称为E型,并涉及其制备工艺。本发明还涉及一种从厄洛替尼三氟乙酸盐制备厄洛替尼盐酸盐的工艺。