| abstract |
According to the present invention, there is provided a method for inhibiting the oxidation of ED-71, which comprises the following steps: preparing (5Z,7E)-(1R,2R,3R)-2-(3-hydroxypropoxy)- Process of 9,10-ring-opened cholesteryl-5,7,10(19)-triene-1,3,25-triol (ED-71) and mixed solution containing water-soluble polymer or basic compound and, the process of removing the solvent from the obtained mixed solution, and providing a method for inhibiting the decomposition of ED-71, comprising: preparing an oil-in-water solution comprising an oil solution of ED-71 and an aqueous solution of a water-soluble polymer Type emulsion, wherein the water-soluble polymer is selected from hydroxypropylmethylcellulose and hydroxypropylcellulose. |