Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SATO KOZO and OKAZAKI Mitsuo,"Synthesis of Spiro[2 H-1-benzopyran-2, 3'-phthalides]",NIPPON KAGAKU KAISHI,0369-4577,The Chemical Society of Japan,1975-12-10,1975,12,2146-2149,https://cir.nii.ac.jp/crid/1390001204418787072,https://doi.org/10.1246/nikkashi.1975.2146