Synthesizing intedanib via acetylation with acetic anhydride and alkali hydroxides in aliphatic alcohols.
A process reacting aniline derivatives with bis(2-alkyl)amine in a cyclic amide solvent to produce vortioxetine.
A universal synthetic route uses an oxocycloalkenyl isoxazolium anhydrobase intermediate to overcome limited direct methods for creating diverse azasteroids.
Catalytic transfer hydrogenation converts 6-keto normorphinans into 6-alpha-amino morphinans, achieving high stereoselectivity without hazardous hydrogen gas.
Adjusting the molar ratio of intermediate compounds to 1.2:1 resolves yield versus waste trade-offs while maintaining pharmaceutical-grade purity standards.
A scalable asymmetric synthesis process for azaspiro compounds using cyclobutane carboxylate addition to a chiral imine.