Fluorine-containing nitrogen mustards attached to hydrocinnamic acid, phenylpyruvic acid and D, L-phenylalanine as carrier groups have been synthesized. The N-(2-chloroethyl)-N- (2′-fluoroethyl) amines are obtained by alkylation of the sodium salts of N- (benzyloxycarbonyl) amines with 2-fluoroethyl p-toluenesulfonate or 2-bromofluorethane, removal of the benzyloxycarbonyl group, followed by hydroxyethylation and chlorination. ...