5,7-dimethyl-[1,2]oxazolo[3,4-d]pyrimidine-4,6-dione

7-(4-chlorophenyl)-5-methyl-[1,2]oxazolo[3,4-d]pyrimidine-4,6-dione

2-ethoxy-1,3-dithiolane

ethoxy-oxo-(phenylmethoxymethyl)phosphanium

6,6'-亚甲基二-2,4-二甲苯酚