HRID1171920
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
The Form E3 is prepared by slurrying atazanavir free base in ethanol; treating the slurry with concentrated sulfuric acid employing a molar ratio of acid: free base with the range from about 1:1 to about 1.1:1, heating the resulting solution at from about 30 to about 40° C., seeding the solution with ethanol wet E3 crystals of atazanavir sulfate, treating the mixture with heptane (or other solvent such as hexane or toluene), filtering, and drying to yield atazanavir bisulfate Form E3 (triethanol solvate).
WORKUP
后处理
- temperaturefree base with the range from about 1:1 to about 1.1:1, heating the resulting solution at from about 30 to about 40° C.
- filtrationfiltering
- customdrying