5,8-dimethoxy-2,2-dimethyl-3,4-dihydrochromen-7-ol

3,4,6,7-tetrahydro-5,10-dimethoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:5,4-b'>dipyran

1,1,1-trichloro-3,4-dimethylpent-4-en-2-one

6-氧代-2-苯基-5-[[(苯基甲氧基)羰基]氨基]-1(6h)-嘧啶乙酸

imino-oxo-diphenyl-λ⁶-sulfane