A method for producing an oxazoline derivative from a non-protected sugar in a simple manner and a method for producing a glycoside by utilizing the product of the aforementioned method are disclosed. In the method, at least one pixel block each of which includes at least two data lines within the liquid crystal panel is set. The spray gun and powder feed system are spaced apart circumferentially so as to define a spray zone and a separate powder zone through which the circulating particles repeatedly and sequentially pass.