Example 12
A solution of Varenicline free base (50.0 g) in methylene dichloride (250 mL) was stirred with the aqueous solution of L-(+)-Tartaric acid (1.2 eq, 39.08 g in 250 mL of water). The aqueous layer containing Varenicline tartrate salt was stirred with methylene dichloride (3×150 ml) to remove the nitrosamine impurity by solvent extraction. Thereafter, follow the general procedure for the isolation of Varenicline base from the aqueous layer. Yield: 31.00 g.
Based on most similar protocols
As authors may omit details in methods from publication, our AI will look for missing critical information across the 5 most similar protocols.
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!
