The present invention relates to an improved process for the preparation of a non-nucleoside reverse transcriptase inhibitor. Specifically, the present invention relates to an improved process for the preparation of Efavirenz of Formula 1. The present invention also relates to a process for the preparation of compound of Formula 2, an intermediate used in the preparation of Efavirenz, wherein X is a halogen atom; X1 is a leaving group.
本发明涉及一种改进的非核苷类逆转录酶
抑制剂制备工艺。具体来说,本发明涉及一种改进的制备EFAVIRENZ(
化学式1)的工艺。本发明还涉及一种制备化合物(
化学式2)的工艺,该化合物是制备EFAVIRENZ时使用的中间体,其中X为卤原子;X1为离去基团。