Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Fujimoto Yasuo and Ono Noriko,Synthesis of Pyrimidine and Purine Bases. I,YAKUGAKU ZASSHI,0031-6903,The Pharmaceutical Society of Japan,1965,85,4,364-367,https://cir.nii.ac.jp/crid/1390282681161915008,https://doi.org/10.1248/yakushi1947.85.4_364