3-(p-Chloranilino)phthalsaeureanhydrid

(1S,2S,3R,6S)-3-Acetoxy-6-(4-chloro-phenylamino)-cyclohex-4-ene-1,2-dicarboxylic acid di-tert-butyl ester

c-2-Acetoxy-r-1-(p-chloranilino)c-3,4-epoxycyclohexen-t-5,c-6-dicarbonsaeure-di-tert-butylester

c-2,c-4-Diacetoxy-t-3-brom-r-1-(p-chloranilino)cyclohexan-t-5,c-6-dicarbonsaeure-di-tert-butylester