Novel mandelate salt of fesoterodine

Abstract

Provided herein is a novel raantlelate sail of fesoterodine, process for the preparation, pharmaceutics!! compositions, and method of treating thereof. Provided also herein are solid state forms of fesoterodine mandelate, process for the preparation, pharmaceutical compositions, and method of treating thereof. The raandelate salt of fesoterodine is useful for preparing fesoterodine free base or a pharmaceutically acceptable salt thereof; particularly fesoterodine fumaraie, in high purity.

Dependencies are inferred from the claim text.