dimethyl 2-(benzenesulfonamido)-3-(triphenylphosphoranylidene)butanedioate

重氮乙酸乙酯

2-diazonio-1-methoxyethenolate

(+/-)-3c,6c-diphenyl-cyclohex-4-ene-1r,2t-dicarboxylic acid dimethyl ester