| 摘要 |
<p>The present invention relates to an improved process for the preparation of Etravirine (I) and its intermediates, wherein Des-bromo Etravirine (XI) is purified and this purified form as such used in the next step for the preparation of Etravirine (I). The present invention also relates to purification of Etravirine (I) from an aqueous solvent.</p> |
