重氮甲烷

3,5-dibromo-4-(di-tert-butyl(nonaprenyloxy)silyloxy)benzoic acid

(4E,8E,12E)-ethyl 2-acetyl-5,9,13,17-tetramethyloctadeca-4,8,12,16-tetraenoate

(6E,10E)-3,7,11,15-tetramethylhexadeca-1,6,10,14-tetraen-3-yl 3-oxobutanoate

乙酰乙酸叔丁酯