title: Synthesis and antitumor evaluation of 4-ethoxycarbonyl cyclophosphamide analogs.
abstract: 4-Ethoxycarbonyl analogs of cyclophosphamide and its five-membered ring homolog were synthesized utilizing the cyclization method previously described. N,N-Bis(2-chloroethyl)-4-ethoxycarbonyl-1,3,2-oxazaphospholidin-2-amine 2-oxide demonstrated activity against L-1210 lymphoid leukemia whereas N,N-bis(2-chloroethyl)-4-(ethoxycarbonyl)tetrahydro-2H-1,3,2-oxazaphosphorin-2-amine 2-oxide did not. The oxazaphosphorin-2-amine was evaluated against human epidermoid carcinoma of the nasopharynx (cell culture). The results again were negative: ED50 = 2.8 X 10.
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000627:therapeutic use; D003520:Cyclophosphamide / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology / Q000627:therapeutic use; D007939:Leukemia L1210 / Q000188:drug therapy
chemical_list: D000970:Antineoplastic Agents; D003520:Cyclophosphamide