反应详情

In accordance with the present invention, a process is provided for preparation of tolterodine tartrate form I. Thus, tolterodine free base is dissolved in a suitable solvent, tartaric acid is added to the solution and tolterodine tartrate form I is isolated. The suitable solvents are ethanol, methylene dichloride, chloroform, acetone, acetonitrile and 1,4-dioxane; and a mixture thereof. The preferable solvents are ethanol and acetone.

1. additionis added to the solution