tetra-O-ethyl asym-monoselenopyrophosphate

N,N'-dicyclohexylselenourea

环己烷氨基甲酸乙酯

2-amino-N-cyclohexyl-N-(cyclohexylcarbamoyl)acetamide

N-(N,N'-dicyclohexylcarbamimidoyl)-4-methoxybenzamide