1,3-bis ( 2-chloroethyl ) -1-nitrosourea , 1- ( 2-chloroethyl ) -3-cyclohexyl-1-nitrosourea , 1- ( 2-chloroethyl ) -3- ( trans-4-methylcyclohexyl ) -1-nitrosourea , 1- ( 2-chloroethyl ) -3- ( 2,6-dioxo-3-piperidyl ) -1-nitrosourea , which alkylate and cross-link dna and carbamoylate biomolecules , and 2- [ 3- ( 2-chloroethyl ) -3-nitrosoureido ] -d-glucopyranose ( chlorozotocin ) , which alkylates and cross-links dna but can not carbamoylate biomolecules , killed more cells in g1 and g2-m phases than in s phase .
C0007634
cells
C0080129
s phase