Improved, Efficient, and Simple Methodology for the Resolution of Racemic Benoxaprofen: A Nonsteroidal Anti‐Inflammatory Drug (NSAID).

The present article discloses an improved, efficient, and simple resolution methodology for the preparation of (S)‐benoxaprofen which is a nonsteroidal anti‐inflammatory drug (NSAID). The resolution of racemic benoxaprofen uses an easily available, efficient, recoverable, and cost‐effective chiral reagent, namely, (1R,2S)‐(+)‐cis‐1‐amino‐2‐indanol. This novel resolution process is having a very high purity of (S)‐benoxaprofen, greater than 99%, substantially free from (R)‐benoxaprofen (less than 1%). [ABSTRACT FROM AUTHOR]