two nitrosoureas , 1- ( 2-chloroethyl ) -3-cyclohexyl-1-nitrosourea ( ccnu ) and 1,3-bis- ( 2-chloroethyl ) -1-nitrosourea ( bcnu ) , with strong carbamoylating and weak alkylating activities , interfered with the induction of potassium leakage and lethal action of amphotericin b ( amb ) on candida albicans .
C0007257
bcnu
C2756975
alkylating activities