5-甲基-1-[5-(7-氧代呋喃并[3,2-g]苯并吡喃-9-基)氧基戊基]嘧啶-2,4-二酮 生成 5-methyl-1-[5-[[23-[5-(5-methyl-2,4-dioxopyrimidin-1-yl)pentoxy]-13,26-dioxo-6,12,21,25-tetraoxaheptacyclo[13.11.0.02,14.03,11.05,9.016,24.018,22]hexacosa-3,5(9),7,10,16(24),17,19,22-octaen-10-yl]oxy]pentyl]pyrimidine-2,4-dione