PREPARATION METHOD OF FOSAMPRENAVIR DERIVATIVES AND RELEVANT INTERMEDIATE THEREOF

摘要

Preparation method of fosamprenavir derivatives is disclosed. The compound shown by formula II or its ammonium salt is reacted with to a metal ion source in solvent to obtain the compound shown by formula III. After isolating and purifying, the compound shown by formula III is catalytic reduced to the compound shown by formula I. In the formula, X is metal ion. Preferably, the metal ion source is a calcium ion source, sodium ion source, or potassium ion source, and X is calcium ion, sodium ion, or potassium ion. The solvent is methanol, ethanol, n-propanol, iso-propanol, n-butanol, or sec-butanol. The catalytic reduction is carried out by using hydrogen as a reducing agent in the presence of palladium-carbon catalyst. The ammonium salt is methylamine salt, dimethylamine salt, ethylamine salt, diethylamine salt, isopropylamine salt, dibutylamine salt, dipropylamine salt, t-butylamine salt, or dicyclohexylamine salt. The relevant intermediate of fosamprenavir derivatives in the preparation method is also provided. The preparation method of fosamprenavir derivatives reduces the cost, improves the productivity, and is applicable for large-scale popularization and application.