Method for producing astaxanthin esters

The invention relates to an environmentally friendly, resource-conserving, and economical method for producing astaxanthin esters of formula 1, wherein astaxanthin of formula 2 is doubly esterified with fatty acid chlorides of general formula 3. For this purpose, compounds 2 and 3 are reacted in an organic solvent in the presence of a nitrogen-containing base of general formula 4. The invention further relates to the non-therapeutic use of diester 1, wherein R stands for a residue that is selected from the group consisting of C13-C19 alkyl, C13-C19 alkenyl, C13-C19 alkdienyl, and C13-C19 alktrienyl, in the nourishment of humans or animals, and to diester 1 produced according to the method, for therapeutic use as a medication and as an ingredient for a medical preparation. 本发明涉及种生产式1的虾青素二酯的环境友好、资源节约和经济方法，其中用通式3的脂肪酸酰氯将式2的虾青素双重酯化。为此，使化合物2和3在有机溶剂中在通式4的含氮碱存在下反应。本发明进步涉及其中R为选自C-C烷基、C-C链烯基、C-C链二烯基和C-C链三烯基的残基的二酯1在人类或动物营养中的非治疗用途，以及根据该方法生产的二酯1，用于作为药物和作为药物制剂的成分的治疗用途。