Drug metabolites play a decisive role in Safety Testing of Drug Metabolites (MIST) guidelines. In particular, acyl and ether glucuronides often exhibit chemical instability, transesterification, and rapid hydrolysis in biological matrices.
### Karpschem's Synthetic Methodology
Our synthesis team has developed scalable stereoselective Schmidt and Koenigs-Knorr glycosylation protocols:
- Selective trichloroacetimidate donors with tailored protecting groups.
- Mild catalytic deprotection preventing beta-elimination of labile aglycones.
- Lyophilization and inert-atmosphere packaging to ensure extended stability.