ethyl 3,4-dioxo-4-phenyl-2-triphenylphosphoranylidenebutanoate

ethyl 3,4-dioxo-2-triphenylphosphoranylidenepentanoate

2-(4-(hydroxy-(4-(2-(piperidin-1-yl)ethoxy)phenyl)methyl))-7-(tert-butyldimethylsilyloxy-2H-chromen-3-yl)-5-(tertbutyldimethylsilyloxy)phenol

ethyl 7-methyl-3-oxo-2-(triphenyl-l⁵-phosphanylidene)oct-6-enoate

5-溴嘧啶