title: Alanine derivatives with reactive groups.
abstract: The synthesis of diazoketone analogs of amino acids and associated problems were investigated with N-phthaloyl-DL-alanine serving as a model. The carboxyl was activated by conversion to the acid chloride or, under mild conditions, to the mixed anhydride obtained with ethyl chloroformate or dicyclohexylcarbodiimide; the product was reacted with diazomethane. Deblocking the phthaloyl group with hydrazine gave 3-amino-1-diazo-2-butanone as a well-characterized solid salt and as a less stable oil. Further reactions of the blocked diazoketone of DL-alanine, such as conversion to alpha-haloketones, Wolff rearrangement, and deuterium exchange on C-1 were investigated. 3-A-mino-1-diazo-2-butanone had moderate inhibitory activity against mouse mammary adenocarcinoma in cell culture.
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy; D000409:Alanine / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology / Q000627:therapeutic use; D000818:Animals; D000964:Antimetabolites, Antineoplastic / Q000138:chemical synthesis* / Q000627:therapeutic use; D002478:Cells, Cultured; D008325:Mammary Neoplasms, Experimental / Q000188:drug therapy; D008722:Methods; D051379:Mice
chemical_list: D000964:Antimetabolites, Antineoplastic; D000409:Alanine