三苯基氧化膦

dimethyl 2-(but-3-en-2-yl)-3-(dipropylamino)maleate

(2R,3S)-2-(benzylcarbamoyl)-1-((R)-2-hydroxy-1-phenylethyl)-6-oxopiperidine-3-carboxylic acid

dimethyl 2-(4-methylanilino)-3-(triphenylphosphoranylidene)butanedioate

methyl 3-carbomethoxy-3-(4'-methoxyphenyl)amino-2-propenoate